A student holds a small rubber ball between a torch light and a white screen. If the torch is moved closer…
A student holds a small rubber ball between a torch light and a white screen. If the torch is moved closer to the ball while keeping the screen fixed, what happens to the shadow size?
It becomes smaller
It becomes larger
It stays identical in size
It disappears entirely
Solution
Moving the light source closer to an opaque object causes the object to block a wider angle of light rays, casting a larger shadow on the screen.