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The radii of curvature of a …

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The radii of curvature of a double convex lens are 15cm and 25cm and it's refractive index is 1.5, calculate it's power.?

Posted by Lan Shylla 2 months, 4 weeks ago

CBSE > Class 12 > Physics

2 answers

Aarti Sangwan 2 months, 3 weeks ago

R1=15cm R2=-25cm Using lens maker formula P=1/f =(n-1) (1/R1-1/R2) P=1/f= (1.5-1) (1/15+1/25) P=1/f= (0.5) (8/75) P=1/f= 4/75 P=400/75 (multipy by 100 as R are in cm)

0Thank You

Prakash Kumar 2 months, 4 weeks ago

1Thank You

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CBSE > Class 12 > Physics

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CBSE > Class 12 > Physics