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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
We have, `(1)/(v)-(1)/(-90)=(1)/(f)rArr (1.5-1)((1)/(30))=(1)/(60)`
`therefore " " v=180 cm`
`therefore " " |m|=|(v)/(u)|=(180)/(90)=2.0`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-RAY OPTICS-EXERCISE 1 (TOPICAL PROBLEMS)
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