Physics, asked by juptcrack, 2 months ago

A 10 mm long awl pin is placed vertically in front of a concave
mirror. A 5 mm long image of the awl pin is formed at 30 cm in
front of the mirror. The focal length of this mirror is
(a) – 30 cm (b) – 20 cm
(c) – 40 cm (d) – 60 cm

Answers

Answered by yashhcjgbhv

2

Answer:

b 20

Explanation:

hope it help you

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