WI$H GUESS PHYSICS XI PAPER CONTACT@9855620961 M.M.65
SEMESTER-II
(i) Question No. 1 to 10 will be of 1 mark each.
(ii) Question No. 11 to 20 will be of 2 marks each.
(iii) Question No. 21 to 25 will be of 3 marks each.
(iv) Question No. 26 to 29 will be of 5 marks each & there will be 100%
internal choice.

1. When two bodies are said to be in thermal equilibrium?
2. Define radius of gyration.
3. What are the units of volumetric strain?
4. State Carnot’s theorem.
5. What is geostationary satellite?
6. Write law of equipartitian of energy.
7. What is damped oscillation.
8. What are units of viscosity?
9. Find out the centre of mass of a system of two bodies 20 cm apart. The masses of the bodies are 2 kg and 8 kg.
10. How far from the earth does acceleration due to gravity become one percent of its value at the earth’s surface ? Radius of earth = 6.38 ´ 10 6 m.
11. Tell why angular momentum is conserved with example?
12. Give example of reversible and irreversible processes.
13. Deduce relation between Cp and Cv.
14. State wain’s displacement and steafan’s law.
15. Give two applications of moment of inertia in daily life.
16. What is Pascal’s law? What are its applications?
17. Write a note on black body radiation.
18. Write the formulae for moment of inertia of Rod,Disc and Ring.
19. Define perpendicular and parallel axes theorems.
20. What is poision’s ratio?
21. In a simple harmonic motion, the velocities of a particle are 10 cm /s and 24 cm /s whenits displacements are 12 cm and 5 cm respectively. Calculate its periodic time andamplitude. [ October, 1998 ]( Ans: 3.14 sec, 13 cm )
22. A propagating harmonic wave expression is y = 0.05 sin ( 628t − 1.8x ) meter. Find thevalues of ( a ) the wave-length, ( b ) the frequency and ( c ) the velocity of the wave.[ April, 2002, October, 1990 ]( Ans: ( a ) 3.49 m, ( b ) 100 Hz, ( c ) 349 m / s )
23. State and prove equation of continuity.
24. Define Kepler’s laws.
25. Give two definitions of 2nd law of thermodynamics.
26. a) Derive formula for centre of mass of two particles system.
b) Prove linear momentum of centre of mass is conserved. Or a)Derive expression for orbital and escape velocity.b)Define terminal and critical velocity.
27. State and prove Bernoulli’s Theorem. Or a) Define Young’s, bulk and modulus of rigidity. b) What is elastic fatigue ? Give example.
28. Derive expression for time period of Simple pendulum. Or Derive expression for efficiency of Carnot’s engine.
29. What is capillary ? Derive Ascent’s formula. Or a)State and prove Newton’s law of cooling. b) State and prove Stoke’s law.