Math, asked by dhansingh271979, 10 hours ago

A lens has power of 5D . it's focal length is​

Answers

Answered by ranunaik54321
1

Answer:

it's focal length is 20cm

Answered by isikajena
0

Answer:

20cm

Step-by-step explanation:

The recipocal of it's length Hence the answer is 20cm

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