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A plano convex lens is made of glass of ...

A plano convex lens is made of glass of refractive index 1.5. The radius of curvature of its convex surface is R. Its focal length is

A

R/2

B

R

C

2 R

D

1.5 R

Text Solution

Verified by Experts

The correct Answer is:
C
Focal length of plano-convex lens,
`f=(R )/(mu-1)=(R )/((1.5-1))=2R`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-RAY OPTICS-EXERCISE 1 (TOPICAL PROBLEMS)
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