Take a sheet of paper. Fold it as shown in the figure. Count the number of parts and the area of a part in each case.

Tabulate your observations and discuss with your friends. It it a case of invers proportion ? Why ?

Take a sheet of paper . Fold it as shown in the figure Count the number of par and the area of a part in each case. Tabulate your observations and discuss with your friends . Is it a case of invers proportion ? Why ?

Take a few containers of different sizes with circular bases. Fill the same amount of water in each container . Note the diameter of each container and the respective height at which the water level stands . Tabulate your observations. Is it a case of inverse proportion?

Light from a sodium lamp(S) passes through two Polaroid sheets P_1 and P_2 as shown in the figure. What will be the effect of the intensity of the light transmitted by P_1 and by P_2 on rotating Polaroid P_1 about the direction of propagation of light? justify your answer in both cases.

How does the mutual inductacne of a pair of coils get affected when the number of turns in each coil is decreased? Explain your answer in each case?