PREVIOUS QUESTION PAPERS

2014 PHYSICS QUESTION PAPER

SECTION-A

1.what is the discovery of c v raman?

2.distinguish between fundamental units and derived units?

3.is it necessary that a mass should be present at the centre of mass of any system ?

4.what happens to the coefficient of friction if the weight of the body is doubled ?

5.why are spokes provided in a bicycle wheel ?

6.when two right angled vectors of magnitude 7 units and 24 unit combine what is the magnitude of their resultant?

7.why are drop and bubbles spherical?

8.whet is angle of contact?

9.whet are the lower and upper fixing point in Celsius and Fahrenheit scales ?

10.define absorptive power of a body  whet is the absorptive

 power of perfect black body?

SECTION.B

11. Show that the trajectory of an object thrown at certain angle with the horizontal is a parabola?

12. Mention the method used to decreases friction?

13. Define strain energy and derive the question for the same?

14.A car travels the first third of the distance with a speed of 10kmph the second third of at 20kmph and the last third at 60kmph?

  a) What is it  means speed over the enter distance

15. What is orbital velocity ? Obtain and expression of its?

16.In what way is the anomalous behavior of water advantageous to aquatic animals?

17. Define angular velocity

18. What is the ratio of r.m.s speed of oxygen and hydrogen molecules at the same temperature?

SECTION- C

19. What are the collisions? Explain the possible types of collusion developed the theory of one dimension elastic collusion?

20. Define simple harmonic motion show that the motion of point projection of a particles performing uniform circular motion on any diameter is simple harmonic motion?

21. State second law of thermodynamic how heat engine is different from a Refrigerator?