A very samml opaque is place in the path of monochormatic light. Its shadow has

A very small opaque disc is placed in the path oa a monochromatic light. Its geometric shadow has

A small circular disce is placed in the path of monochromatic light. The centreof the geometrical shadow is always

What happens if an opaque object is placed in the path of light as shown in the above figure?

A glass slab is placed in the path of a beam of convergent light. The point of convergence of light

Assertion (A) : When tiny circular obstacle is placed in the path of light from some distance, a bright spot is seen at the center of the shadow of the obstacle. Reason (R ) : Destructive interference occurs at the centre of the shadow.

Assertion (A) : When tiny circular obstacle is placed in the path of light from some distance, a bright spot is seen at the centra of the shadow of the obstacle. Reason (R ) : Destructive interference occurs at the centre of the shadow.