Question

4. Assertion: The focal length of the mirror is f and distance of the object
from the focus is u, the magnification of the mirror is f/u.
Reason: Magnification= size of image /size of object.
e) If both assertion and reason are true and the reason are the correct
explanation and the assertion.
f) If both assertion and reason are true but reason is not the correct
explanation of the assertion.
g) Assertion is true but reason is false.
h) Assertion is false but reason is true.

Answer 1

Answer:

assertion is false, reason is true.

Explanation:

u is the object' distance from mirror/lens.

Answer 2

Answer: option h.

Explanation:

Assertion is false but reason is true because magnification is distance of image upon distance of object or height of image upon height of object.