Science, asked by LakhanHembram, 5 hours ago

21. A convex lens forms a virtual image when an object is placed at a distance of 20cm from it. The focal length is _________.

A. f = 40 cm

B. f = 20 cm

C. f > 20 cm

D. f < 20 cm

which option is correct.

Answers

Answered by rajwinderkaurs673

0

Answer:

f = 40 cm

Explanation:

maybe it's correct

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