Physics, asked by chhangtelallawmzuali, 8 months ago

Two lenses of power -15D and 5D are in contact with each other .the focal length of combination is

Answers

Answered by GeekyJS

0

Explanation:

Total power after combination=+5-3=+2

power=1/f(in metre)

2=1/f

f=+0.5

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