Science, asked by arhamamalik, 1 year ago

define one dioptre? what is the power of lens whose focal length is -15 cm

Answers

Answered by ananya138
2
one dioptre is the power of the lens whose focal length is 1 m
1 dioptre = 1/f (in m)
focal length = -15cm = -0.15m
power = 1/-0.15
= -100/15
= -6.67 dioptre

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Anonymous: yeah
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