ICSE Class 10 Sample Paper 2027 Physics

FOR ICSE CLASS 10 EXAM PREPARATION

ICSE Class 10 2027
Sample Paper ·
Physics
EXAM YEAR TYPE SUBJECT

ICSE Class 10 2027 Sample Paper Physics

Notes · Sample Papers · Previous Year Papers · Mock Tests

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m ICSE 2027 EXAMINATION .co
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g l a SPECIMEN QUESTION PAPER a
a
PHYSICS
(SCIENCE PAPER 1)

Maximum Marks: 80

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Time allowed: Two hours

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1. Answers to this Paper must be written on the paper provided separately.

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2. You will not be allowed to write during first 15 minutes.

3. This time is to be spent in reading the question paper.

4. The time given at the head of this Paper is the time allowed for writing the answers.

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5. Section A is compulsory. Attempt any four questions from Section B.
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c. o The intended marks for questions or parts of questions are given in brackets
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Instruction for the Supervising Examiner

Kindly read aloud the Instructions given above to all the candidates present in the
Examination Hall.

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NOTE:

The Specimen Question Paper in the subject provides a realistic
format of the Board Examination Question Paper and should be used
as a practice tool. The questions for the Board Examination can be set
from any part of the syllabus. However, the format of the Board
Examination Question Paper will remain the same as that of the
Specimen Question Paper.

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SECTION A (40 Marks)a

(Attempt all questions from this Section.)

Question 1

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Choose the correct answers to the questions from the given options. [15]
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(Do not copy the question, write the correct answers only.)
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la produces the maximum turning effect about the pivot? a
(i) A heavy object and a light object are placed on a seesaw. Which

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arrangement

(a) Both objects near the pivot on opposite sides.

(b) Heavy object close to the pivot; light object at the far end on the
opposite side.

(c) Light object close to the pivot; heavy object at the far end on the
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opposite side.

(d)
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Both objects at the ends of the seesaw, on opposite sides of pivot.
s
[Application]

g la during photosynthesis in plants is:
a
(ii) The energy transformation taking place

(a) heat to chemical

(b) chemical to light

(c) light to chemical

(d) chemical to heat [Recall]

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(iii)
. c
Two balls, A and B have the same gravitational potential energy. Ball A is

. co six times the mass of ball B. How do their heights above the ground
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a (a) Height of A is the same as height of B.

(b) Height of A is twice the height of B.

(c) Height of A is one-sixth the height of B.

(d) Height of A is six times the height of B. [Application]

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(iv) The Velocity Ratio (V.R.) of a block and tackle system of three pulleys
with the effort in upward direction is:

(a) 1

(b) 2

(c) 3

(d) 4 [Application]

(v) If red, blue, green and yellow lights are allowed to enter the same glass
block with the same angle of incidence (∠i ), then for which colour will the
angle of deviation be the greatest?

(a) blue

(b) green

(c) yellow

(d) red [Understanding]

(vi) The figure shows a source of light S at the bottom of a trough containing a
transparent liquid. Rays X and Y emerge from the source. If ∠SOP = 43°,
state the possible angle of incidence of ray Y.

(a) 43°

(b) 45°

(c) 47°

(d) 49° [Application]

T27 521 – SPECIMEN 4 of 19

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(vii) a parts act as:
A concave lens diverges light because its upper and lower

(a) inverted prisms

(b) upright prisms

(c) upright and inverted prisms respectively

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(d) inverted and upright prisms respectively [Recall]

o m m
c
Assertion (A): . Blue light scatters more than red light in the atmosphere.
s e
(viii)
e m l a
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Reason(R): Intensity of scattered light is inversely proportional to the
ag
ag fourth power of wavelength.

(a) (A) is true and (R) is false.

(b) (A) is false and (R) is true.

(c) Both (A) and (R) are true, and (R) is the correct explanation of (A).

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(d) Both (A) and (R) are true, but (R) is not the correct explanation of (A). [Recall]

. c
(ix)
m
Two sound waves, X and Y have the same amplitude and the same wave
e
as
pattern, but their frequencies are 60 Hz and 120 Hz respectively, then:
l
agbe grave.
(a) X will be shriller, and Y will

(b) X will be grave, and Y will be shriller.

(c) X will differ in quality than Y.

(d) X will be louder than Y. [Understanding]

o m
(x)
m c
A radioactive nucleus has 90 protons and 140 neutrons. It undergoes two
.
. co successive alpha decays. What are the mass number and atomic number
s e m
of

e m the final nucleus? l a
l as a g
ag (a) Mass number = 222, atomic number = 86

(b) Mass number = 226, atomic number = 88

(c) Mass number = 224, atomic number = 86

(d) Mass number = 222, atomic number = 88 [Application]

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(xi) According to the old convention, the colour of the earth wire is:

(a) black

(b) green

(c) yellow

(d) red [Recall]

(xii) The amount of heat energy required to melt a given mass of a substance at
its melting point, without any rise in its temperature is called the:

(a) specific heat capacity

(b) specific latent heat of fusion

(c) latent heat of fusion

(d) heat capacity [Recall]

(xiii)

The above diagram shows a strong bar magnet moved towards the coil PQ
along its axis, in the direction shown by the arrow. Which option correctly
shows the momentary deflection of magnetic needle N₁ and the direction
of current through the galvanometer?

Deflection of magnetic needle Direction of current

(a) P Q

(b) Q P

(c) P Q

(d) Q P

[Analysis]

T27 521 – SPECIMEN 6 of 19

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(xiv) a length becomes
A metallic wire is stretched in such a way that its new
twice the original length. How does its specific heat capacity change?

(a) becomes double

(b) becomes 4 times

becomes 1�4 m
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(c)
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(d)
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remains the same
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[Understanding]e m
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(xv)
l a
Priya built the circuit as shown in the figure given below. If she wants both
a
ag(B1 and B2) to glow, which switches (S1, S2, S3) should be kept
bulbs
ON?

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(a) S1 and S2 only

(b) S1 and S3 only

(c) S2 and S3 only

(d) S1, S2 and S3 [Application]

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Question 2
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(i). e
em (a) Friction acts __________ [tangential / radial] to a car undergoing l as
Complete the following by choosing the correct answers from the bracket: [6]

las a g
ag circular motion.

(b) A glass prism is immersed in water. The angle of minimum deviation
will __________ [decrease / increase].

(c) The CGS unit of specific heat capacity is _________ [erg g-1 K-1 / cal/g-
1
K-1].
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(d) The minimum distance for distinct echo formation is __________
[greater /lesser] in water as compared to air.

(e) Two copper wires can have different resistivity if they have different
__________ [lengths / temperatures].

(f) Nuclear __________ [fusion / fission] is possible at ordinary
[Recall]
temperature and pressure.

(ii) Match the movement of the body part in Column A to the class of lever in [2]
Column B.

Column A Column B

(a) Nodding head 1. Class III

(b) Lifting body weight on your toes 2. Class II

3. Class I
[Understanding]

(iii) Analyse the displacement position graph and answer the questions that [2]
follow.

Find two figures that show:

(a) sound of same loudness and pitch but different quality.

(b) sound of same pitch but different loudness. [Application]

T27 521 – SPECIMEN 8 of 19

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Question 3 a
(i) (a) Refer to the diagram given below. A lens is made of two materials of [2]
different refractive indices (µ1, µ2) as shown. If the rays are coming
from a distant object, then how many images will be formed?

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[Application]
(b) A glass lens always forms a virtual, erect, and diminished image of
an object kept in front of it. Identify the lens. [Recall]

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(ii) The image given below displays kilowatt-hour meter readings recorded at [2]
. c
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two distinct points in time.

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Assuming a continuously running 2000W air conditioner as the sole
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c. o these two meter readings. .co
m s e [Application]
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(iii) ABCDE is a regular pentagon with its centre of gravity (CG) at O. What [2]
will be the most probable position (W, X, Y, Z or O) of the new centre of
gravity:

(a) if a piece of clay is attached at point A?

(b) if the pentagon is cut along the line PQ? (CG of the remaining part
DCBQPE)

[Application]

(iv) The diagram given below shows a copper wire wound around a U-shape [2]
soft iron bar. An iron pin is brought near the arrangement. First Source P
and then Source Q are connected across AB, each operating independently.

(a) State True or False: Source P as well as Source Q, when connected
across AB, can attract the iron pin. [Understanding]

(b) Justify your answer to (a) with a suitable reason. [Understanding]

T27 521 – SPECIMEN 10 of 19

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(v) a 4m, and 5m are
Blocks of identical material, having masses m, 2m, 3m, [2]
heated to 150oC, and then cooled to 50oC.

(a) Draw the nature of the graph connecting the amount of heat released
[Application]
vs the mass of the blocks.

(b) Write the mathematical expression that enables the determination of
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[Application]
m
the specific heat capacity using the graph.

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g lathe following questions according to the instructions given: a [2]
a
(vi) Answer

(a) When 6Li3 is bombarded with a neutron, it produces 4끫룞끫룞끫뾠 and an
isotope of hydrogen. Write the notation for the hydrogen isotope [Understanding]
formed.

(b) Fill in the blank:
[Recall]
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The mass of the reactants in a fission reaction is __________ (greater

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/less) than the mass of the products.

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(vii)
g
a use fibre optic cables to transmit light
Advanced optical sensors in missiles [3]
signals with minimal loss. This relies on a physical phenomenon that
confines light within the fibres, making the system very dependable for
guiding the missile precisely.

(a) Name the optical phenomenon that allows light signals to remain

om
[Recall]
confined within the fibre optic cables during transmission.

o m (b) List the two main conditions necessary for this phenomenon to occur.m.c[Understanding]
. c s e
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SECTION B (40 Marks)
(Attempt any four questions from this Section.)

Question 4

(i) A diagram shows a ray of light travelling through three different [3]
transparent media having refractive indices μ₁, μ₂ and μ₃ as shown. Points
Q and R are points on the surfaces separating the media. Given PQ || RS.

(a) Among the three media shown, in which medium is the speed of light
minimum? [Understanding]

(b) As the ray of light travels from medium 1 to medium 2, how does the
wavelength of light change? (State whether it increases, decreases,
or remains constant.) [Understanding]

(c) State the relationship between the refractive indices μ₁ and μ₃ that
ensures the emergent ray (RS) is parallel to the incident ray (PQ). [Understanding]

T27 521 – SPECIMEN 12 of 19

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(ii) a in angle of
The diagram below shows two graphs showing variation [3]
deviation against angle of incidence for two colours of light (blue, orange)
while passing through the same prism. [Diagrams are not drawn to the
same scale.]

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(a) State with a reason whether a = b , a < b , or a > b. [Application]

(b) If we increase the angle of the prism then what is the effect on the
[Application]
values of a and b?

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(iii)
s em
A candle and a screen are placed 90 cm apart. Steve placed a lens between [4]

g la on the screen and the image is twice
a
them such that a clear image is formed
the size of the object.

(a) Which type of lens is used by Steve? [Understanding]

(b) Write an equation relating the object distance u, image distance v, and
[Application]
the distance between the candle and the screen.

(c) State the ratio between the image distance v and the object distance u.
o m
[Application]
m . c [Application]
c. o (d) Calculate the image distance. s e m
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ag Question 5
(i) Draw a ray diagram to show the formation of an image by a concave lens [3]
when the object is placed between F and 2F. [Application]

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(ii) The diagram below shows a cooling curve for a substance X: [3]

(a) State the temperature at which the substance condenses. [Recall]

(b) Mention the temperature range in which the substance is in its liquid [Understanding]
state.

(c) State True or False: The amount of heat released when a substance
is cooled by 10°C in its liquid state is greater than the heat released
when it is cooled by the same amount in its solid state. [Application]

(iii) In an experiment to measure the temperature of the flame of a Bunsen [4]
burner, a lump of copper of mass 0.12 kg is heated on the flame for a long
time. The copper then is quickly transferred into a beaker of negligible heat
capacity containing 0.84 kg of water and the temperature of the water rose
from 15°C to 35°C. Calculate the temperature of the flame.

[Given sp. Heat capacity of copper = 0.4 Jg-1 oC-1, Sp. Heat capacity of
water = 4.2 Jg-1 oC-1.] [Application]

Question 6

(i) [3]

A metal rod AB of length 80 cm is balanced at 45 cm from the end A with
100 gf weights suspended from the two ends.
(a) If this rod is cut at the centre C, then compare the weight of AC to
the weight of BC. (Use >, < or =)

(b) Give a reason for your answer in (a). [Analysis]

T27 521 – SPECIMEN 14 of 19

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(ii) a done by gravity
For each of the following scenarios, state whether the work [3]
is positive, negative, or zero.

(a) A person walks on a levelled road.

(b) A person climbs a ladder.

(c) A car in a neutral gear is coming down the slope. [Understanding]
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(iii)
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An empty supermarket trolley of mass 10 kg is moving with a speed of 8
e
[4]
s
m
em
m s⁻¹. An identical trolley is loaded with 10 kg of goods and moves with a
s g l a
g la4 m s⁻¹. Both trolleys are brought to rest over the same stopping
speed of a
a
distance.
(a) Calculate the kinetic energy of the empty trolley. [Application]

(b) Calculate the kinetic energy of the loaded trolley. [Application]

(c) Compare the braking force required to stop the empty trolley and the
loaded trolley.
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[Analysis]
(d) Name the principle applied in solving part (c).
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[Recall]

la s
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Question 7
(i) a a lever to raise a load placed at point P.
A bar of length 120 cm is used as [3]
Seven equidistant points are marked along the bar: P, Q, R, S, T, U, and
V, each 20 cm apart. You are permitted to place the fulcrum at any of the
marked points and exert the effort at a different point.

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a

(a) Specify the fulcrum and effort points that yield the greatest
mechanical advantage. [Analysis]

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(b) Based on the lever arrangement identified in part (a), calculate the
maximum mechanical advantage using the distances shown in the [Application]
diagram. [Recall]
(c) To which class of lever does this arrangement belong?

(ii) A boy is located asymmetrically between two parallel walls, closer to the [3]
left wall than the right. If he claps, the time interval between successive
echoes is 0.25 s, then find the value of X in metres. [speed of sound in air
= 340 m /s.]

[Application]

(iii) Two wires A and B of the same material and length are fixed to a wooden [4]
board and stretched under the same tension. The cross-sectional area of
wire A is greater than that of wire B. When set into vibration using identical
tuning forks of frequency 300 Hz, only wire B produces a loud sound.

(a) Name and explain the phenomenon responsible for the loud sound
produced by wire B. [Understanding]

(b) A loud sound is heard from wire A when the experiment is repeated
using a tuning fork of frequency 끫뢦. Is ‘f’ greater than, less than or
equal to 300 Hz? Justify your answer. [Application]

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Question 8 a
(i) The below diagram shows the part of a complete circuit. The ammeter [3]
reads 1A.

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Calculate:

(a) the current I1 through the 3Ω resistor. [Application]
(b) the total current I in the circuit. [Application]
(c) State True or False: When the switch (S) is opened and the entire
current flows through the 6Ω resistor, the ammeter reading will be

m
c. o
(1+I1). [Analysis]

s em
(ii)
g
An appliance with a metal covering,la rated at 2 kW, 220 V, is to be [3]
a are two diagrams (R & S) depicting
connected in a circuit. Given below
different circuit configurations.

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a (a) Identify the safest circuit. [Analysis]

(b) Write two reasons, supported by mathematical calculations, where
applicable, to justify your choice. [Application]

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(iii) A Nichrome wire X with length (l) and cross-sectional area (A) is [4]
connected to a 10 V source and another Nichrome wire Y with length (2 l)
and cross-sectional area (A/2), is connected to a 20 V source.

(a) Compare the resistances of wires X and Y. [Given that the resistivity
of Nichrome is (ρ).] [Application]

(b) Compare the electrical power consumed by each wire. [Application]

(c) Compare the masses of these wires. [Given that the density of
nichrome is d.] [Application]

(d) State True or False: Wire X and wire Y both show the same rise in
temperature at the same time. [Analysis]

Question 9

(i) Three bulbs of powers P1, P2 and P3 (P1<P2<P3) are connected in a certain [3]
way such that P3 glows the brightest.

(a) What type of connection exists between these bulbs? [Understanding]

(b) Compare the voltages (V1, V2, V3) across these bulbs.
(Use >, < or =) [Understanding]

(c) Will the circuit still function if one of the bulbs is fused? [Understanding]

(ii) Study the diagram and answer the following questions: [3]

(a) In the given circuit when the key is closed, the galvanometer in the
coil B shows momentary deflection. Give a reason for this deflection. [Understanding]

T27 521 – SPECIMEN 18 of 19

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a resistance in the
(b) How will the galvanometer deflect if the variable
closed circuit is decreased? (in the same direction / in the opposite
[Application]
direction)

(c) Give a reason for your answer to (b). [Application]

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(iii) The graph given below illustrates the correlation between the number of [4]

o m m
c
protons (x-axis) and the number of neutrons (y-axis) for elements A, B, C,
D, and E in the.periodic table. These elements are denoted by the letters s e
e m l a
la s
rather than their conventional symbols.
ag
a g

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a
(a) Identify the radioactive radiation emitted when element C decays into
element E. Represent this using a nuclear reaction. [Application]

(b) What is the special name given to elements like D and E? [Understanding]

(c) If element C transforms into element B by emitting a radioactive ray,
how will this ray behave in an electric field? [Analysis]

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c. o s e m
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l a a
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ICSE 2027 SPECIMEN
DRAFT MARKING SCHEME – PHYSICS (SCIENCE PAPER 1)
Question 1 [15x1]
(i) (c) Light object close to the pivot; heavy object at the far end on the opposite side.

(ii) (c) light to chemical

(iii) (c) Height of A is one-sixth the height of B.

(iv) (d) 4

(v) (a) blue

(vi) (d) 49°

(vii) (d) inverted and upright prisms respectively

(viii) (c) Both (A) and (R) are true, and (R) is the correct explanation of (A).

(ix) (b) X will be grave, and Y will be shriller

(x) (a) Mass number = 222, atomic number = 86

(xi) (b) green

(xii) (c) latent heat of fusion.

(xiii) (c)
PQ

(xiv) (d) remains the same

(xv) (a) S1 and S2 only

Question 2
(i) (a) radial [6x1]
(b) decrease
(c) erg g-1 K-1
(d) greater
(e) temperatures
(f) fission

(ii) (a) Nodding head  Class I [2]
(b) Lifting body weight on your toes  Class II

(iii) (a) b and d [2]
(b) a and c

T27 521 - SPECIMEN 1 of 6

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(i) (a) 2 images will be formed
a [2]
(b) concave lens

(ii) Energy spent =1567-856 =711kWh [2]
Time in hours = 711/2 =355.5 hours

(iii) (a) X [2]
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(b) Z

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emwill produce a magnetic field: The attraction of a magnetic material glas
(iv) (a) True [2]

s
la depend on the polarity of the magnet.
(b) Both sources
a
g
does not

(v) (a)
a [2]

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s e
g la
a
끫룀끫룀끫룀끫룀끫룀 끫뢸 끫룂ℎ끫뢬 끫뢨끫뢨끫뢨 ℎ 끫룀끫룀끫룀끫룀끫룀 끫뢸 끫룂ℎ끫뢬 끫뢨끫뢨끫뢨 ℎ
(b) specific heat capacity = =
∆끫룂 100

(vi) (a) 끫롶13 [2]
(b) greater
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c. o(a) .co
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(vii) [3]

em (b) 1. Light ray should travel from denser to rarer medium.
l as
las 2.
a ga given pair of
Angle of incidence must be greater than critical angle for

ag optical media.

Question 4
(i) (a) In medium 2, of refractive index μ2 [3]
(b) Wavelength decreases
(c) μ1 = μ3

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T27 521 - SPECIMEN 2 of 6

g
𝑜𝑜

𝑖𝑖

𝑔𝑔

𝑜𝑜

𝑖𝑖

𝑔𝑔

a For more Question Papers, Sample Papers, Notes & Syllabus visit Page 21 of 25

(ii) (a) a>b [1+1]
Angle of minimum deviation is inversely proportional to the wavelength of light and
wavelength of blue is smaller than wavelength of orange.

(b) Values of a and b will increase. [1]

(iii) (a) Convex lens [1]
(b) 끫룆 + 끫룄 = 90 [1+1+1]
[끫뢌끫뢌끫뢌끫뢌 끫뢠끫뢠 끫뢠 끫뢠 끫뢠 끫뢞 끫룄끫룄 끫룄 끫뢸끫뢸 끫뢦 끫뢦 끫뢦 끫뢦끫뢦 끫뢦 & 끫뢂끫뢂끫뢂 끫뢦 끫뢦 ]
끫룆
(끫뢠) = −2 끫룆: 끫룄 = 2:1 or −2 = −끫룄
끫룆 끫룆
( ) = ∴ −2 = ∴ 2끫룄 = 끫룆
끫룄 −끫룄
끫롨 끫룆 + 끫룄 = 90 ∴ 2끫룄 + 끫룄 = 90 ∴ 3끫룄 = 90 ∴ 끫룄 = 30
끫룄 = 30 끫뢠
끫룆 = 90 − 30
끫룆 = 60 끫뢠

Question 5
(i) [3]

Ray 1  1 mark
Ray 2  1 mark
Virtual diminished image +arrows 1 mark
(ii) (a) 150°C [1]
(b) 150°C to 60°C [1]
(c) True [1]

(iii) Heat lost by Cu = 0.12 × 400 × ( − 35) [1]
Heat gained by water = 0.84 × 4200 × (35 − 15) [1]
0.84×4200×20
− 35 = 0.12×400
= 7 × 42 × 5 = 1470 0끫롬 [1]

= 1470 + 35 = 1505 0끫롬 [1]
𝑐𝑐𝑐𝑐

𝑐𝑐

𝑐𝑐

𝑐𝑐

𝑡𝑡𝑡𝑡

𝑏𝑏

𝑢𝑢

𝑜𝑜𝑜𝑜

𝑓𝑓

𝑙𝑙𝑙𝑙𝑙𝑙𝑙𝑙

𝑓𝑓

𝑓𝑓𝑓𝑓

𝑓𝑓

𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎

𝑜𝑜𝑜𝑜

𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑
𝑚𝑚
𝑑𝑑

𝑚𝑚

𝐴𝐴

𝑐𝑐
𝑐𝑐

T27 521 - SPECIMEN 3 of 6
𝑡𝑡

For more Question Papers, Sample Papers, Notes & Syllabus visit Page 22 of 25
𝑡𝑡
𝑡𝑡

m
m .co
m Question 6 .co s e m
se g l a
(i) (a) Weight of AC < weight of BC
a [1]
(b) Even though the weights present are the same at both ends, the torque arm of B is [2]
less than the torque arm of A.
This indicates that the weight of the rod is concentrated more between C and B
than between A and C.

(ii) (a) No work is done. [1]
m
m .co
.co
(b) Negative work is done. [1]
e m
(c)
e m
Positive work is done.
l as [1]

(iii)
l a
(a) Empty s
trolley: (b) Loaded trolley:
ag [1+1]
g = 10kg v =8m/s
aMass Mass =20kg v =4m/s
KE = ½ mv2 KE = ½ mv2
= 1/2×10 × 8× 8=320끫롺 = 1/2×20×4×4=160끫롺
[1]
KE1 F1.s 320 2
(c) =
KE2 F2.s
= =160 =1 ∴ F1: F2= 2:1
(d) work-energy theorem [1]

m
m .co
s e
a
Question 7
→ 끫뢒gl
(i) ( )
(끫뢞) 끫롾
끫롲 → 끫뢈
= 20끫뢠
a [1]
[1]
끫롰 = 100끫뢠
끫롰 100
끫뢀 = = =5
끫롾 20 [1]
(끫뢠) 끫롲 끫뢠

(ii) Time required for longer distance i.e 68 m
m
m .co
.co
2×
=
끫룆
e m
e m 2 × 68 4
l as
las = 340
= 10 = 0.4
ag [1]

ag t = 0.4
끫뢾 끫뢦 끫뢦 ℎ . 끫뢦 끫뢦 끫룊
= 0.4 − 0.25
= 0.15 [1]
2끫룊
0. 15 = 340
2끫룊 = 51

om .
[1]
끫룊 = 25.5
.c e m
em l as
T27 521 - SPECIMEN
las ag
4 of 6
𝑎𝑎

𝐹𝐹𝐹𝐹𝐹𝐹𝐹𝐹𝐹𝐹𝐹𝐹

𝑎𝑎𝑎𝑎𝑎𝑎

𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒
𝐿𝐿𝐿𝐿𝐿𝐿

𝑎𝑎𝑎𝑎𝑎𝑎

𝑐𝑐
𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸

𝑎𝑎𝑎𝑎𝑎𝑎

𝑐𝑐

g
𝐸𝐸
𝑀𝑀

𝐿𝐿
𝐹𝐹𝐹𝐹𝐹𝐹𝐹𝐹

𝑐𝑐𝑐𝑐𝑐𝑐𝑐𝑐

𝑙𝑙𝑙𝑙𝑙𝑙𝑙𝑙𝑙𝑙

a
𝑑𝑑
𝑡𝑡
𝑡𝑡

𝑠𝑠
𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡

𝑟𝑟𝑟𝑟

𝑟𝑟𝑟𝑟𝑟𝑟𝑟𝑟𝑟𝑟

𝑓𝑓

𝑠𝑠

𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜

𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑

𝑖𝑖

𝑒𝑒

𝑓𝑓

𝑚𝑚
𝑡𝑡


𝑡𝑡

𝑠𝑠

For more Question Papers, Sample Papers, Notes & Syllabus visit Page 23 of 25
𝑚𝑚

(iii) (a) Resonance [1+1]
The frequency of the tuning fork (300 Hz) matches the natural frequency of the
wire B and the amplitude of vibration increases.
(b) f < 300Hz [1+1]
The wire A is thicker than the wire B therefore its natural frequency is less than the
wire B.

Question 8
(i) (a) Since P.D. is same across parallel combination [1]

(b) [1]
(c) False [1]

(ii) (a) S [1]
(b) metal body of appliance is earthed [1+1]
I = PV = 2000/220 =9.09 A 10A fuse is appropriate

(iii) 끫븘 끫븘2 끫븘 [1]
( ) 끫뢊 끫뢖 = 끫뢊 끫뢘 = =4 끫뢊 ∶ 끫뢊 = 1: 4
끫롨 끫롨 끫롨
2
끫뢒 2 102 끫뢒 2 202 [1]
(끫뢞) 끫뢆 = = 끫뢆 == 끫뢊 = 4끫뢊 ∴ 끫뢆 : 끫뢆 = 1: 1
끫뢊 끫뢊
끫롨 [1]
(c) 끫뢖 = 끫롨 × × = 끫뢘 = 2 × 2 × ∴ : = 1: 1

(d) True [1]
끫뢒 2 끫룂
끫뢈 = 끫뢴 = 끫롨 × 끫뢠 × 끫뢖 = 끫뢊 = 끫뢆 × →eq 1
끫뢒 2 끫룂
끫뢈 = 끫뢴 = 끫롨 × 끫뢠 × 끫뢘 = 끫뢊 = 끫뢆 × →eq 2

Eq1/eq2 =1 ( 끫룂 끫룈 끫뢞 끫뢞 ℎ 끫룈 )

Question 9
(i) (a) parallel [1]
(b) V1 = V2 = V3 [1]
(c) Yes [1]

(ii) (a) Magnetic flux linked with the coil B changes (and due to electromagnetic induction [1]
current is induced).
(b) The deflection will be in the same direction. [1+1]
(c) This is because when we decrease the resistance, the magnitude of current
increases, increasing the magnetic flux.
𝜌𝜌

𝑙𝑙

𝜌𝜌
𝑎𝑎

𝑅𝑅𝑅𝑅

𝑅𝑅𝑅𝑅

𝑅𝑅

𝑅𝑅

T27 521 - SPECIMEN 5 of 6
𝑃𝑃

𝑃𝑃

𝑃𝑃

𝑃𝑃
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚

𝑜𝑜𝑜𝑜

𝑙𝑙

𝑑𝑑

𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚

𝑜𝑜𝑜𝑜

𝑙𝑙

𝑑𝑑

𝑚𝑚𝑚𝑚

𝑚𝑚𝑚𝑚
𝑄𝑄

𝑚𝑚𝑚𝑚

𝑚𝑚

𝐴𝐴𝐴𝐴

𝛥𝛥𝛥𝛥

𝑃𝑃

𝑡𝑡
𝑄𝑄

𝑚𝑚𝑚𝑚

𝑚𝑚

𝐴𝐴𝐴𝐴

𝛥𝛥𝛥𝛥

𝑃𝑃

𝑡𝑡
𝑟𝑟𝑟𝑟𝑟𝑟𝑟𝑟

𝑖𝑖𝑖𝑖

𝑡𝑡𝑡𝑡𝑡𝑡

𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡

𝑤𝑤𝑤𝑤𝑤𝑤

𝑏𝑏

𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠

𝑖𝑖𝑖𝑖

𝑏𝑏𝑏𝑏

𝑤𝑤𝑤𝑤𝑤𝑤𝑤𝑤

For more Question Papers, Sample Papers, Notes & Syllabus visit Page 24 of 25

m
m .co
.co
m (iii) s e m
se 끫뷺 : 238 238 0
92끫롬 → 93끫롰 + −1끫뷺 g l a
a
(a) [1+1]
(b) isotopes [1]
(c) It will shift towards the negative plate [1]

m
m .co
m .co s e m
s e l a
g l a ag
a

m
m .co
s e
g la
a

m
m .co
m .co s e m
s e g l a
g la a
a

m .
.co s e m
s em l a
la ag
T27 521 - SPECIMEN 6 of 6

ag For more Question Papers, Sample Papers, Notes & Syllabus visit Page 25 of 25