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Assertion:- The formula ((1)/(4)+(1)/(u)...

Assertion:- The formula `((1)/(4)+(1)/(u)=(1)/(f))` connecting u and v for a spherical mirror is valid only for mirros whose sizes are very small compared to their radii of curvatures.
Reason:- Laws of reflection are strictly valid for smaller size of of optical system.

A

If both Assertion `&` Reason are True `&` the Reason is a correct explanation of the Assertion.

B

If both Assertion `&` Reason are True but Reason is not a correct explanation of the Assertion.

C

If Assertion is True but the Reason is False.

D

If both Assertion `&` Reason are False.

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The correct Answer is:
C
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Assertion The formula connecting u, v and f for a spherical mirror is valid only for mirrors sizes which are very small compared to their radii of curvature. Reason Laws of reflection are stricity valid for plane surface, but not for large spherical.

The formula connecting u,v and f for a spherical mirror is valid only for mirrors whose sizes are very small compared to their radii of curvature. Because Statement-2 Laws of reflection are strictly valid for plane surfaces, but nor for large spherical surfaces.s

Statement - 1 : The formula connecting u, v and f for a spherical mirror is valid only for mirrors whose sizes are very small compared to their radii of curvature. Because Statement - 2 : Laws of reflection are strictly valid for plane surfaces, but not for large spherical surfaces.

In each of the questions, assertion(A) is given by corresponding statement of reason (R) of the statemens. Mark the correct answer. Q. Statement I: The formula connecting u,v and f for a spherical mirror is valid only for mirrors whose sizes are very small compared to their radii of curvature. Statement II: Laws of reflection are strictly valid for plane surfaces, but not for large spherical surfaces.

What is f in mirror formula (1)/(u)+(1)/(v)=(1)/(f) ?

In the mirror formula, (1)/(f)=(1)/(v)+1/u,f does not change when u is changed.

The formula for linear magnification of a spherical mirror is m=(h_(2))/(h_(1))= (-v)/(u) . What determines the sign of m? What is the signification of the sign?

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