Physics, asked by hemudas7567, 1 year ago

A concave and convex lens of focal length 20m and 40m are placed in contact effective power of combination is

Answers

Answered by shreyapatil1

0

additional both power is ca all. the 20 +,40
= 60

Answered by Priya12345678

0

20+40=60 is the answer..
Hope this helps you..

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