Question

when a opaque comes in the path of light it forms

Answer 1

A shadow is formed when an opaque object comes in the path of light.

Explanation: When a ray of light strikes an opaque thing or an object, a dark patch appears on the opposite side of the object, whether it is on the ground or on the screen on the other side. A source of light, an object, and a screen are all required for the production of a shadow. The size of a shadow is entirely determined by the distance between the object and the light source. The larger the shadow, the closer the source of light is. The greater the distance between the light source and the shadow, the smaller the shadow.