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A plano-convex lens of curvature of 30 c...

A plano-convex lens of curvature of 30 cm and refractive index 1.5 produces a real image of an object kept 90 cm from it. What is the magnification?

A

4

B

0.5

C

1.5

D

2

Text Solution

Verified by Experts

The correct Answer is:
D
(d) We have, `1/v-1/(-90)=1/f rArr(1.5-1)(1/30)=1/60`
`therefore` v=180 cm
`therefore absm=abs(v/u)=180/90=2.0`
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DC PANDEY ENGLISH-RAY OPTICS-Checkpoint 9.4
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