question_answer

A bulb is kept burning just right above the following solids. Name the shape of the shadows in each case. Attempt to give a rough sketch of the shadow. (You may try to experiment first answer these questions.)

Answer:

When a bulb is kept burning right above the solid named :

(a) Ball: There is its shadow and looks like a circle.

(b) Cylindrical pipe: There is its shadow is and looks like a rectangle.

(c) Book: There is its shadow and looks like a rectangle.