Physics, asked by libnaprasad, 2 months ago

Calculate the power of concave lens of focal length 25cm.

Answers

Answered by parthiv2838

2

Answer:

4d

Explanation:

mark as brainlest/////

Answered by almaachuginogmailcom

3

Answer:

Given , focal length = 25cm = 0.4

formula of power .of lense (P) = 1/f

= 1/0.4

= 4D

where D stands for dioptre which is unit of power of the lense.

hope it helps you guys

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