# CBSE Class 11 Physics Question Paper Set L

CBSE Class 11 Physics Question Paper Set L. 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.

SECTION -A

1 What is the effect of detergent on the surface tension of a liquid?

2 A body falling from a height of 10 m rebounds from a hard floor. It loses 20% of its energy in impact. What is the height to which it would rise after the impact?

3 Displacement-time (S-T) graph of any object is shown in figure. Draw velocity- time graph for this motion.

4 A screw gauge has a pitch of 1.0 mm and 200 divisions on the circular scale. Is it possible to increase the accuracy of the screw gauge by increasing the number of divisions on the circular scale?

5 What is the effect on the velocity of waves in a string if only ¼ th of the original length is used with the same tension?

SECTION –B

6 Using component of force, show that it is easier to pull a lawn roller than to push it.

7 A car is moving on road with speed 54kmh-1. What should be the value of torque if the car is brought to rest in 15 seconds? Radius and momentum of inertia of wheel about the axis of rotation are 0.35m and 3 kgm2 respectively.

8 Two masses M and m are connected at the two ends of an inextensible, light string. The string passes over a smooth frictionless pulley. Calculate the acceleration of the masses and the tension in the string. M is heavier than m.

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