Physics, asked by charvituteja06, 8 months ago

a student use a lens of focal length 40cm ans another -20 cm write the nature and powwr of each lens.

Answers

Answered by sujalthakur595

0

Answer:

I don't no this question . sorry

Answered by dilliprasaddhakal528

0

Answer:

Power of 1st lens is

p=1/f

=1/0.4

=2.5 D (convex lens)

Power of 2nd lens is

P= 1/f

= 1/-0.2

= -5D ( concave lens)

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