Physics, asked by srr1993pe4gy8, 11 months ago

thin lens has a focal length of - 25 cm what is the power of lens

Answers

Answered by tanukulk10

2

POWER = 1/f

P= 1/(-25)

= -0.04Dioptre

Hope this helps...

tanukulk10: According to the question... it’s -4D

nimisubupe4gwn: So it’s right?

srr1993pe4gy8: yes

Answered by nimisubupe4gwn

2

1/f=p

-1/25/100=p

-1x100/25= -1x20/5=-1x4=-4D

The power is -4D

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