Light Test - 1

A car or a truck driver always prefers a convex mirror in his vehicle. This is due to the fact that, the image formed in the convex mirror is always___.

Periscope works on the principle of multiple reflections. It consists of two or more mirror, used for the reflection. If the two mirrors are placed at an angle of 90°, how many images of the object are formed between them?

The Kaleidoscope is an instrument consisting of plane mirrors that produces multiple reflections of colored glass pieces and create beautiful pattern. It consists of three long and narrow strips of plane mirrors. The angle of inclination of the mirror is__________.

An object is placed at a distance of 50 cm from a concave lens of focal length 20 cm. Find the position of the image _______.

A small boy places a paper written 'PAPYRUS' in front of a plane mirror. He finds that it appears totally inverted in opposite direction. He gets confused. He goes to his mother and tells his problem. His mother explains him the exact reason for this. The exact reason could be_______.