Question

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
figure. Will the shadow be formed in each case? If yes,
then how will the shadow on the screen be different in
each case? Give reasons for your answer.

Answer 1

$\huge{\underline{\bold{\red{Answer :-}}}}$

No shadow will be formed in either of the cases, except for the muslin cloth and plywood.

• i. Lighter image will be formed of a muslin cloth, as it is translucent, so the light will pass partially through it.
• ii. For the formation of the shadow, an object should be opaque, since the glass is transparent, shadow formation will not take place.
• iii. The sheet of plywood is an opaque object, thus, the perfect dark shadow will be obtained.