alleryStart learning →As per your syllabus, if the radius of curvature of a spherical mirror is 20 cm, what is its focal length?
A10 cm (since f = R/2)
B20 cm
C5 cm
D40 cm
Answer & Solution
Correct answer: A. 10 cm (since f = R/2)
As per your syllabus, f = R/2 = 20/2 = 10 cm.
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