Question

A magnifying glass is used, as the object to be viewed can be brought closer to the eye than the normal near point. This results in ______.

1. a larger angle to be subtended by the object at the eye and hence viewed in greater detail.
2. the formation of a virtual erect image.
3. increase in the field of view.
4. infinite magnification at the near point.

विकल्प

• a and b

• a and c

• b and d

• c and d

Answer 1

a and b

Explanation:

A magnifying glass is a single convex lens of lesser focal length.

When a magnifying glass is used, the object to be viewed can be brought closer to the eye than the normal near point. This results in a larger angle being subtended by the object at the eye and hence, viewed in greater detail. Moreover, the formation of a virtual erect and enlarged image takes place.