radius of carvature of a concave mirror is 50 cm. its focal length will be:
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Answered by
1
focal length = radius of curvature /2
= 50/2
= 25cm.....
MAK11896:
your answer is wrong
Answered by
1
We know that,
R = 2f
f = R/2
f = 50/2
f = 25cm
According to the sign convention,
Focal length of concave mirror is always negative.
Therefore, focal length of the concave mirror is - 25 cm.
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