Physics, asked by sudharshanabalaji09, 23 days ago

if two lenses of power 2D and 3D are kept in contact with each other, then focal length of the combination will be

Answers

Answered by swausmusic

1

The power of combination P=P1+P2=5D

(P1=2D,P2=3D)

∴ The focal length of combination

f=1P=15=0.2=20 cm

Answered by warithabdul73

0

The answer is f=20cm

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