Question

can you find the focal length of a concave lens by forming the image of a distant object on a screen give reason too

Answer 1

No bcoz concave lens form virtual image for a distant object. So can't be seen on screen so cant measure

Answer 2

Hi friend,

Here is your answer,

We can not find the length of a concave lens by forming the image of a distant object on a screen because concave lens forms virtual image i.e it can not be taken on the screen.


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