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If the radius of curvature of a concave mirror is
30 cm. Then its focal length will be
(A) 15 cm
(B) 30 cm
(C) 60 cm
(D) 90 cm
Answers
Answered by
1
Answer:
15 cm
Explanation:
f=R/2
f=30/2
f=15
Answered by
1
Answer:
Explanation:15 cm
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