Question

I. DIFFERENTIATE BETWEEN THE FOLLOWING

1. Real and virtual image
2. Short-slightness and long -slightness
3. Retina and optic nerve

Answer 1

Real images are those images which are formed in front of the mirror.
Virtual images are those imager which take place behind the mirror.

(b) This is a type of eye defect in which a person can see the nearby object clearly but cannot see the distinct object

Answer 2

Real images are those which can be obtained on screen virtual images are those which cannot be obtained on screen. Ex of real image would be cinema screen forms real image and your image in mirror would be virtual images.

Short sightedness is a condition when you can see only near by objects and Ong sightedness is a situation when u can see only far away objects.

Retina is the light sensitive screen in eyes where image is obtained and optic nerve is a collection of nerve that converts the image into electrical signals for being perceived by brain.

Hope it helps!!!!