Civil Engineering - Surveying - Discussion

Discussion Forum : Surveying - Section 2 (Q.No. 41)

Surveying

41.

Pick up the correct statement from the following :

the power of a lens is the reciprocal of its focal length

the unit of power of the lens is diopter

the power of two or more thin lenses in contact is the power of the combination of the lenses

all the above.

Answer: Option

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