Q. 84.0( 2 Votes )

Four modifications are suggested in the lens formula to include the effect of the thickness t of the lens. Which one is likely to be correct?
A.

B.

C.

D.

Answer :

We know the case of shift in the image due to thick slab. Remembering the cases,

,


As, t and v are small, it is ignored


SO, u’=u+t and v’=v-t. From, here we can easily tell about the answer.

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