What sign (+ve or -ve) is given to the focal length of:

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asked Jan 19, 2018 in Physics by Kundan kumar (49,132 points) 34 384 1026
edited Jan 25, 2018 by faiz

What sign (+ve or -ve) is given to the focal length of:
(a) a concave mirror?, and (b) a convex mirror?

1 Answer

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answered Jan 19, 2018 by Vikash Kumar (144,729 points) 8 11 21
selected Jan 19, 2018 by Kundan kumar
 
Best answer

(a) Focal length of a concave mirror is - ve, and
(b)
Focal length of a convex mirror is +ve.

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