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If thin lens of power5Dand -2D are placed in contact with each other focal length of combination

If thin lens of power5Dand -2D are placed in contact with each other focal length of combination

Grade:10

1 Answers

Arun
25750 Points
6 years ago
Dear Tarun
 

Let the two lenses be A and B

Power of A =+5D

power of B = -2D

P= p1 +p2

P =5+(- 2)

Power =3.0 D

 

Regards

Arun (askIITians forum expert)

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