Do the laws of reflection change, when w...

Do the laws of reflection change, when we use a spherical mirror instead of a plane mirror ?

Text Solution

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No, the laws of reflection do not change.

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Knowledge Check

If the reflecting surface of a spherical mirror is convex, then it is a _____ mirror.

A

Convex

B

Concave

C

Plane

D

Planoconvex

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.

A

If both Assertion and Reason are true and Reason is the correct explanation of Assertion.

B

If both Assertion and Reason are true but Reason is not correct explanation of Assertion.

C

If Assertion is true but Reason is false.

D

If Assertion is false but Reason is true.

In a reflecting astronomical telescope, if the objetcive (a spherical mirror) is replaced by a parabolic mirror of the same focal length and aperture, then

A

the final image will be erect

B

the large image will be obtained

C

the telescope will gather more light

D

spherical aberration will be absent

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