Gunjan and Moksh are putting on a shadow-puppet show with a torch and a white wall

Why

Gunjan's move does make the shadow sharper and clearer, which is a real improvement — but it also makes it smaller. A shadow forms where an object blocks light travelling in straight lines from the source. Picture the rays leaving the torch and just grazing the edges of the hands: they spread out like a cone. If the hands are close to the torch, those edge rays are already spread wide by the time they reach the wall, so the shadow is large. If the hands are close to the wall, the rays have almost no room left to spread beyond the hands, so the shadow is only about the size of the hands. Test: hold your fist halfway between a torch and a wall, then slowly move it towards the torch — the shadow grows (and its edges get fuzzier); move it towards the wall — the shadow shrinks to about the size of your fist. Moksh is right: moving the hands closer to the torch makes the shadow bigger.