Question

A student had a ball, a screen and a torch in working condition. He tried to form a shadow of the ball on the screen by placing them at different positions. Sometimes the shadow was not obtained. Explain

Answer 1

Answer:

The formation of shadow by a source of light also suggest that the light travels in straight line. This is because if light could bend and travel in curved lines,then it would have reached behind the object and hence no shadow could have been formed.

Answer 2

Answer:

It depends on the distance.

Explanation:

If you keep the object and the light away from the screen, the shadow becomes very light that it feels like there is no shadow.

A similar example is the bird flying in the sky.

the bird is far away from the ground hence no shadow.

I hope you understood