Types of Vision

Q. The main purpose of this passage is _____.

1. to describe the life of popular birds
2. to show our incorrect ideas of bird life
3. to show our perfect knowledge about birds
4. to describe the calls of owls and ducks

Q. Briefly explain the following terms.

(ii) Power of accommodation.

Q. To focus on the nearby objects, lens become

1. concave
2. spherical
3. convex
4. flat

Q. To focus on the nearby objects, lens become

1. flat
2. convex
3. concave
4. spherical