Power of concave lens is 4.5D find its focal length ?
Answers
Answered by
8
F =1/p
F=1/4.5
F=0.22 cm
F=1/4.5
F=0.22 cm
gurleen28:
thanks
Answered by
11
power = 1/ focal length
focal length = 1/ power
focal length =1/4.5
=0.22m
hope it helps you
focal length = 1/ power
focal length =1/4.5
=0.22m
hope it helps you
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