Science, asked by 7dharun7, 6 months ago

Find the power of a concave lens of a focal length 9m

Answers

Answered by rajk914129

0

Explanation:

p = 1/f

p= 1/-9p

= - 0.111 dioptre

Answered by arpitatripathi705

0

Answer:

Explanation:

Focal length of concave lens is always negative.So,

f= -9m

P = 1/f

=1/-9

= - 0.11D

Points to remember:- 1. focal length of concave lens or mirror is always negative

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