define one dioptre? what is the power of lens whose focal length is -15 cm
Answers
Answered by
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
1 dioptre = 1/f (in m)
focal length = -15cm = -0.15m
power = 1/-0.15
= -100/15
= -6.67 dioptre
arhamamalik:
this iiiis right answer or not
Similar questions