Page 8 - Physics - XI

CONTENTS

SECTION - A

EXPERIMENTS

1. Units and Measurements 9–38

Experiment - 1: To measure diameter of a small spherical/cylindrical body and to measure internal 9
diameter and depth of a given beaker/calorimeter using Vernier Callipers and hence
find its volume.
Experiment - 2: To measure diameter of a given wire and thickness of a given sheet using screw gauge. 15

Experiment - 3: To determine volume of an irregular lamina using screw gauge. 21
Experiment - 4: To determine radius of curvature of a given spherical surface by a spherometer. 25
Experiment - 5: To determine the mass of two different objects using a beam balance. 30
2. Motion in a Plane 39–45

Experiment - 6: To find the weight of a given body using parallelogram law of vectors. 39

3. Oscillations 46–57

Experiment - 7: Using a simple pendulum, plot its L-T graph and use it to find the effective length 46
2
of second's pendulum.
Experiment - 8: To study variation of time period of a simple pendulum of a given length by taking 51
bobs of same size but different masses and interpret the result.
4. Laws of Motion 58–69

Experiment - 9: To study the relationship between force of limiting friction and normal reaction and 58
to find the co-efficient of friction between a block and a horizontal surface.
Experiment - 10: To find the downward force, along an inclined plane, acting on a roller due to 64
gravitational pull of the earth and study its relationship with the angle of inclination
θ by plotting graph between force and sinθ.

ACTIVITIES

Activity - 1: To make a paper scale of given least count, e.g., 0.2 cm, 0.5 cm. 70
Activity - 2: To determine mass of a given body using a metre scale by principle of moments. 72
Activity - 3: To plot a graph for a given set of data, with proper choice of scales and error bars. 75

Activity - 4: To measure the force of limiting friction for rolling of a roller on a horizontal plane. 78
Activity - 5: To study the variation in range of a projectile with angle of projection. 80
Activity - 6: To study the conservation of energy of a ball rolling down on an inclined plane (using 83
a double inclined plane).
Activity - 7: To study dissipation of energy of a simple pendulum by plotting a graph between 85
square of amplitude and time.