Question

b) The things required for the formation of a shadow are a source of light, an object, and
a​

Answer 1

Answer:

The things required for the formation of a shadow are a source of light, an object, and

a screen

Answer 2

Answer:

Three things are required for formation of shadow, viz. a source of light, an object and a screen. The size of shadow depends on the distance of source of light and on the angle at which the light rays fall on the object.