Question

we are able to read while sitting in the shade​

Answer 1

There will be the presence of light even in shade also.

This light may not come from the sun directly, but it comes with the reflection and refraction from the objects present around.

So in this way it is easy to study even in the shade also.

Answer 2

Answer:

The sun is an extended source of light which is far away from the Earth. The sunlight casts a Shadow of the object, in its path, on the earth. This Shadow has no Umbra but penumbra which is nothing but the shade. There is a sufficient amount of light available to read in the shade. Hence, we are able to read while sitting in the shades.