what is the sign of focal length in convex and concave mirror
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Focal length in a convex mirror is always positive because it have virtual focus and in concave mirror it is always negative because it have real focus.
Hope it helped u frnd:-)
Hope it helped u frnd:-)
Hemantchaudhary1:
hmm...thanks cutiepie
Answered by
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the focal length is denoted by small f
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