the focal length of a convex lens is 20 cm what will be power of lens
don't spam
Answers
Answered by
6
focal length= 20 CM
power = 100/ f
= 100/20
= +5 D
please mark as brainlist
maths4995:
two bulbs this one
Answered by
3
Power = 1/focal length
Therefore,
1/0.2m is the power in this case
1/0.2m=100/20=5 D
D or dioptre is the unit of power
Therefore,
1/0.2m is the power in this case
1/0.2m=100/20=5 D
D or dioptre is the unit of power
Similar questions