Light Test - 10...

To get three images of a single object, one should have two plane mirrors at an angle of :

Two plane mirrors are inclined to each other such that a ray of light incident on the first mirror $$(M_1)$$ and parallel to the second mirror $$(M_2)$$ is finally reflected from the second mirror $$(M_2)$$ parallel to the first mirror $$(M_1)$$. The angle between the two mirrors will be :

Amount of light entering in the eye is controlled by:

What is the phenomenon of light coming back after hitting a smooth plane surface called?

When the light is very bright, then:

Image of our face in a plane mirror is :

The angle of incidence is given by the angle :

Image on the retina remains for:

Name the part of the eye which gives colour to the eyes.

When light is incident on a polished surface ........ reflection takes place.