Question 24
A sheet of plywood, a piece of muslin cloth and that of a transparent glass, all of the same size and shape were placed at A one by one in the arrangement shown in Fig. Will the shadow be formed in each case? If yes, how will the shadow on the screen be different in each case? Give reasons for your answer.
Question 24
A sheet of plywood, a piece of muslin cloth and that of a transparent glass, all of the same size and shape were placed at A one by one in the arrangement shown in Fig. Will the shadow be formed in each case? If yes, how will the shadow on the screen be different in each case? Give reasons for your answer.
Shadow will not be formed in every case.
Shadow is formed when light from a source is blocked by an opaque object. In case of perfect transparent glass, light passes through it and no shadow is formed.
In case of plywood sheet and piece of muslin cloth, a shadow will be formed. This is because a plywood sheet is an opaque object and it will form a dark shadow by blocking the path of light completely. The piece of muslin cloth is a translucent object and it forms a lighter shadow as it allows light to pass through it partially.
We might see a small shadow in case of transparent glass in practical applications because it might not be an ideal glass which passes all the light through it.
Shadow will not be formed in every case.
Shadow is formed when light from a source is blocked by an opaque object. In case of perfect transparent glass, light passes through it and no shadow is formed.
In case of plywood sheet and piece of muslin cloth, a shadow will be formed. This is because a plywood sheet is an opaque object and it will form a dark shadow by blocking the path of light completely. The piece of muslin cloth is a translucent object and it forms a lighter shadow as it allows light to pass through it partially.
We might see a small shadow in case of transparent glass in practical applications because it might not be an ideal glass which passes all the light through it.
