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Directions : In the following questions,...

Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.
Assertion (A): The focal length of the convex mirror will increase, if the mirror is placed in water.
Reason (R): The focal length of a convex mirror of radius R is equal to, f= R/2.

A

Both A and R are true and R is the correct explanation of A.

B

Both A and R are true but R is NOT the correct explanation of A.

C

A is true but R is false.

D

A is false and R is True.

Text Solution

Verified by Experts

The correct Answer is:
D
Focal length of the spherical mirror does not depend on the medium in which it is placed.
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Knowledge Check

  • Focal length of a convex mirror is 10 cm

    A
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