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Question

Select the correct lens formula where u, v, f have standard meanings.

A
1v1u1f=0
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B
1u1v1f=0
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C
1u+1v1f=0
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D
1v+1v+1f=0
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Solution

The correct option is A 1v1u1f=0
Lens formula is given by:
1v1u=1f
where:
v: Image distance
u: Object distance
f: Focal length of the lens

Rearranging the equation we get,
1v1u1f=0

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