Why shadow doesn't give the idea of  exact size of the  object?prove it. 

Asked by Jayant.n.senapati | 8th Jan, 2020, 08:04: PM

Expert Answer:

The size of shadow keeps on changing with the change in the relative position of object and source oif light and screeen on which the shadow is being obtained. 
Thus, we cannot get idea of exact size of an object by its shadow formation. 

Answered by Shiwani Sawant | 9th Jan, 2020, 10:35: AM