Question

Assertion: A point object is placed at a distance of 26 cm from a convex mirror of focal length 26 cm the image will not form at infinity.

Reason: for above given system the equation 1/u+1/v=1/f gives v=infinity .​

Answer 1

Answer:

If Assertion is correct but Reason is incorrect.        

Explanation:

The assertion is correct as for any object position, the image formed by a convex mirror is virtual, erect, diminished and formed within focus behind the mirror.

The reason is incorrect. The object distance, for any mirror is to be considered negative. The focal length for a convex mirror, anyway is positive. So, lens equation will give:

1/v= 1/26 + 1/26

=1/13

v=13cm

Answer 2

Answer:

A IS TRUE AND R IS FALSE

Explanation:

1/v= 1/26 + 1/26

=1/13

v=13cm