Physics, asked by usha21oct, 11 months ago

Calculate the focal length of a lens if its power is -2.5 d

Answers

Answered by aryanas1207

12

Answer:

the focal length of the lens is =1/p

=1/-2.5= -0.4 metres

Explanation:

Answered by suvam24

0

Answer:

-40cm

Explanation:

Given that,

P=-2.5D

F=?

According to question,

P=100/f

f=100/P

=100/(-2.5)

=-40cm

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