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The focal length of a spherical mirror is _____ the radius of curvature of the mirror.1) twice2) half3) the same as4) unrelated to
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3 votes
3 votes
The focal length of a spherical mirror is _____ the radius of curvature of the mirror.1) twice2) half3) the same as4) unrelated to

User Wulong
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1 Answer

24 votes
24 votes

The focal length of a spherical mirror is related to the radius of curvature through the equation,


f=(R)/(2)

Thus the focal length of a spherical mirror is half the radius of the curvature of the mirror.

Thus the correct answer is option 2.

User Deosha
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