SECTION A

1 Define instantaneous acceleration of a body. 

2 Is light year a unit of time? Define light year. 

3 State Newton’s second law of motion. 

4 The resistance R = V/I where V = (100±5) V and I = (10±0.2) A. Find the percentage error in R.

5 Two objects are dropped from different heights h1 and h2 simultaneously. Find the ratio of times at which they touch the ground in terms of heights.

SECTION A

1 Why are shockers used in cars, scooters and motor cycles?

OR

What happens to coefficient of friction, when weight of body is doubled?

2 If the pressure of a gas at constant temperature is increased four times, how the velocity of sound in the gas will be affected?

3 Arrange the four fundamental forces in nature in the ascending order of their strength.

CBSE Class 11 Political Science Question Paper Set E Solved. Students can download the last year board exams question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.