A doctor has advised to use 2.5D lens. The focal length of the lens is …………………..

A doctor has advised to use 2.5D lens. The focal length of the lens is …………………..

A) 40 cm

B) 250 cm

C) 2.5 cm

D) 50 cm

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

Correct option is A) 40 cm

4 views Answered 2023-02-05 15:29

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