Find the focal length of the lens if the power of the lens is – 2D

Find the focal length of the lens if the power of the lens is – 2D

A) 49 cm

B) 50 cm

C) 52.5 cm

D) 55 cm

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

Correct option is B) 50 cm

4 views Answered 2023-02-05 15:29

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