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CBSE Class 10 Answered

Give the relation between object distance, image distance and the focal length for a spherical lens.
Asked by Topperlearning User | 21 Jul, 2017, 03:05: PM
answered-by-expert Expert Answer

The object distance (u), image distance (v) and focal length (f) of a lens are related as:

begin mathsize 14px style 1 over straight f space equals space 1 over straight v space minus space 1 over straight u end style
This is known as lens formula.
Answered by | 21 Jul, 2017, 05:05: PM

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