the power of the lens of spectacle is -0.5 dioptre , find the focal length of lens used in the spectacle.
Answers
Answered by
9
1/f=D
-0.5=1/f
f=1/-0.5
f= -2 m
please mark this as brainiest
-0.5=1/f
f=1/-0.5
f= -2 m
please mark this as brainiest
Similar questions