MICROANATOMY

Detailed explanation-1: -Answer. When natural light is available the plane mirror may be used for reflection of light because concave mirror would form window images. However, with artificial illumination, the concave mirror is necessary for higher magnifications whereas for lower, the plane mirror may be used.

Detailed explanation-2: -In a torch, the bulb is placed at the focal point of the concave mirror so the light from the bulb is reflected as a parallel beam. This helps users to specifically see the object, upon which the beam falls.

Detailed explanation-3: -Concave mirrors reflect light inward to one focal point. Unlike convex mirrors, the image formed by a concave mirror shows different image types depending on the distance between the object and the mirror.