Science, asked by vasudhamergu, 4 days ago

(19) The focal length of a convex lens is 20cm what its power ?

Answers

Answered by ZzzKuNaLKuMaRzzZ

0

Answer:

P=1/f

P=1/20

P= 0.05 DIOPTRE

Answered by sushantpal005

1

F = 20cm

cm to m

F = 0.2m

P= 1/F

P = 1/0.2

P= 5 dioptre

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