Briefly explain the term persistence of vision.

Explain lateral inversion with an example.

What do you mean by sources of light?

What are the functions of the optic nerve and retina?

Draw a diagram of the human eye.

Briefly mention which of the following will cause regular reflection of light and which diffuse reflection of light

(a) Polished wooden table   (b) Chalk powder   (c) Cardboard

(d) Mirror                              (e) Paper                (f) Marble floor with water spread over it

Draw a labelled diagram showing how a plane mirror forms an image of a point placed in front of it.

State the characteristics of the image formed in a plane mirror.