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A double convex lens has two surfaces of equal radii R and refractive index μ= 1.5. We have,

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asked Mar 29, 2018 in Physics by shabnam praween (19,050 points) ● 5 ● 6 ● 78

A double convex lens has two surfaces of equal radii R and refractive index μ= 1.5. We have,

(a) f= R/2

(b) f = R

(c) f = - R

(d) f =2R.

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answered Mar 29, 2018 by santoshjha (25,550 points) ● 4 ● 5 ● 7
selected Mar 30, 2018 by Vikash Kumar
 
Best answer
The correct answer is

(b) f = R
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