difference between image and shadow ????

Shadow :-
1=A shadow gives only a rough idea of shape of an object.
2=It has no colour.
3=It is formed due to blockage of light by the object which is opaque.

Image :-
1=It gives the exact shape of the object.
2=It gives the colour of the object.
3=It is formed due to reflection of light.

I hope this answer will help you
Thankyou