The radius of curvature of a thin plano-convex
lens is 10 cm (of curved surface) and the refractive
index is 1.5. If the plane surface is silvered, then
it behaves like a concave mirror of focal length
(a) 10 cm (b) 15 cm
(c) 20 cm (d) 5 cm
Answers
Answered by
0
Answer:
it behaves like a concave mirror of focal length 20 cm
Answered by
1
Answer:
given that radius of curvature = 10cm
radius of curvature × 2 = focal length
focal length = 10 × 2
focal length = 20 cm
option c is correct
Explanation:
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