Physics, asked by kolansreejareddy, 3 months ago

A double convex lens has two surfaces of equal radii R=30cm and refractive index n= 1.5. find the focal length [f] in cm

Answers

Answered by vipashyana1

4

Answer:

f=15cm

Explanation:

R=2f

f=R/2

f=30/2

f=15cm

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