Question

state the lens formula and write it in mathematically​

Answer 1

Answer:

We obtain lens formula by measuring the size of the object without magnification and the magnified size of the same object when a hand lens has been used. Let size of object be X. The size after magnification is Y. Formula is given by (Y/X )x , where x is the unit of magnification.

Explanation:

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Answer 2

Answer:

1/f=1/u +1/v

Explanation:

where f= focal length

v=image distance

u= object distance