Physics, asked by ziyamehrin, 10 months ago

An object placed 60 cm away from a lens a real is obtained 30 cm away from the lens.
what is the focal length ?​​

Answers

Answered by aslamaslufcb
0

Here is ur answer

=>Convex lens will always produce a real image

u=-60cm

v=30cm

f=?

Lens formula :1/v+1/u=1/f

=>u+v/vu=1/f

=>vu/u+v=f

Now substitute the values.

30×-60/-60+30=f

-1800/-30=60

=>F=60cm

Hope it helps u

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