Physics, asked by anitashinde369, 1 year ago

Power of the lens is -40 its focal length is a.4 m b. -40 m c. 40 cm d.5 cm

Answers

Answered by kvsureshkvsuresh

1

1/-40D is the power of the lens bcz..

p=1/f

Answered by Animesh1912

1

Power = 1/ f (in metres)

So - 40 = 1/f

i.e f =-1/40 metres or 2.5 cm

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