TOSS Inter Model Question Paper Physics

TELANGANA OPEN
SCHOOL SOCIETY

MODEL
QUESTION PAPER
INTER

PHYSICS
MODEL QUESTION PAPER

SECTION – A (VERY SHORT ANSWER QUESTIONS)

Note: Answer all the questions.
Each question carries Two marks 13 x 2 = 26 Marks

1. Why does the car with a flattered tyre stops sooner than the one inflated tyres?
2. Modern air crafts fly at heights upwards of 10 km. Calculate the value of ‘g’ at that
altitude. Given the radius of the earth is 6400 km and the value of ‘g’ on the surface of the
earth is 9.8 ms-2.
3. How does kerosene oil raise in the wick of a lantern ?
4. Why do two layers of cloth of equal thickness provide warmer covering than a single
layer of cloth of double the thickness ?
5. Distinguish between transverse and longitudinal waves.
6. State Lenz’s law.
7. When current drawn from a cell increases, the potential difference between the cell
electrodes decreases, Why ?
8. Define total internal reflection and write the relation between critical angle and refractive
index of the media ?
9. Calculate the focal length of a lens if the radii of curvature of its two surfaces are +20 cm
and -25 cm. (u = 1.5) ?
10. An electron is accelerated through a P.D. of 182 volt. Calculate its associative wave
length.
11. Differentiate between junction diode and zenor diode ?
12. Distinguish UPS from Invertor ?
13. What do you understand by terms film size and speed ?

124

Note : Answer any Six Questions 6 x 5 = 30 Marks
Each question carries Five marks
14. State and prove work – energy theorem ? What happens to kinetic energy of a particle if
the speed of the particle is doubled ?
15. State Bernoulli’s theorem and write down the equation. Under what conditions
Bernoulli’s theorem is applicable to a fluid ?
16. Show that the motion of simple pendulum is simple harmonic and derive expression for
its time period ?
17. For the circuit shown here, calculate the current flowing in 6 ȍ resistor ?

6Ÿ 12 Ÿ

4Ÿ

6V

18. Explain the defects in image formation of optical instruments ?
19. How does a p.n junction diode works as a half wave rectifier ?
20. What is an inverter ? Write how it works ?
21. Explain the various steps involved in audio recording and reproduction?

SECTION – C (LONG ANSWER QUESTIONS)

Note: Answer any Three Questions 3 x 8 = 24 Marks
Each question carries Eight marks

22. State Newton’s second law of motion. Hence derive the equation of motion F = ma from
it. A Constant force of magnitude 50N is applied to a body of mass 10 kg moving initially
with a speed of 10 ms-1. How long will it take the body to stop if the force acts in a
direction opposite to its motion.

23.
a. Define specific heats of gas
b. Calculate Cp and Cv for argon. Given R = 8.3 J mol-1 k-1.
c. Derive the relationship between Cp and Cv.

24. Derive condition of balancing wheat stone bridge using Kirchhoff’s Law.
25. Describe Rutherford’s experiment of Į – ray scattering and its findings.
125

=∂ki „ѨâßflѨ„`«O

444

AglaSem Earn while Learn Program. Send your papers and get paid.
Contact: support@