Science, asked by pavan38, 1 year ago

Doctor advise to use 2D lens its focal length is

Answers

Answered by vishagh

8

Power=1/f
F=1/power

Power=2D (dioptre)
Focal length=1/2
=0.5 m

Answered by john44

2

p= 1/f
f = 1/d
f= 1/2
f=0 .5m
the focal length of lens is 0.5 m

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