Question

2. We saw that changing colour of opaque objects does not change the colour of
their shadows. What happens if we place an opaque object in coloured light?
You can cover the face of a torch with a coloured transparent paper to do this.
(Did you ever notice the colours of evening shadows just as the Sun is setting?)​

Answer 1

Answer:

Yes it change due to property. And due to change in medium during travelling

Answer 2

If we place an opaque object in coloured light, the colour of the shadow is grey.

The colours of evening shadows just as the Sun is setting is yellowish grey.

Explanation:

When a light falls on a object, the object blocks some of the light. The direct reflection of the blocked light is called shadow.

Sometimes, the shadow has dull colours. This is because, other coloured lights get into the path of the shadow.

For example, during evening time, the sun is in yellowish orange, when an object blocks the light of the sun. The shadow falls and some of the light of the sun get bounced from the object and falls in the path of the shadow. So, the shadow is in yellowish grey colour.

This is also the reason, the shadow is never in pitch black colour.