Page 9 - Physics - XI

SECTION - B

EXPERIMENTS

5. Mechanical Properties of Solids 89–99

Experiment - 1: To determine Young's modulus of elasticity of the material of a given wire. 89
Experiment - 2: To find the force constant of a helical spring by plotting a graph between load and 94
extension.
6. Mechanical Properties of Fluids 100–115

Experiment - 3: To study the variation in volume with pressure for a sample of air at constant 100
temperature by plotting graphs between P and V, and between P and 1/V.
Experiment - 4: To determine the surface tension of water by capillary rise method. 105
Experiment - 5: To determine the coefficient of viscosity of a given viscous liquid by measuring 109
terminal velocity of a given spherical body.

7. Thermal Properties of Matter 116–125

Experiment - 6: To study the relationship between the temperature of a hot body and time by 116
plotting a cooling curve.
Experiment - 7: To determine specific heat capacity of a given solid by method of mixtures. 120
8. Waves 126–137

Experiment - 8: To study the relation between frequency and length of a given wire under constant 126
tension using sonometer.

Experiment - 9: To study the relation between the length of a given wire and tension for constant 129
frequency using sonometer.

Experiment - 10: To find the speed of sound in air at room temperature using a resonance tube by 132
two resonance positions.
ACTIVITIES

Activity - 1: To observe change of state and plot a cooling curve for molten wax. 138
Activity - 2: To observe and explain the effect of heating on a bi-metallic strip. 139
Activity - 3: To note the change in level of liquid in a container on heating and interpret the 141
observations.
Activity - 4: To study the effect of detergent on surface tension of water by observing capillary rise. 143
Activity - 5: To study the factors affecting the rate of loss of heat of a liquid. 145
Activity - 6: To study the effect of load on depression of a suitably clamped metre scale loaded at 148

(i) its end (ii) in the middle.
Activity - 7: To observe the decrease in pressure with increase in velocity of a fluid. 150