the power of a lens is +2D.its focal length will be:(a)100 (b)50(c)25 (d)40.
Answers
Answered by
1
hello my friend!
we know that power p= 1/f
here +2 = 1/f
f = +1/2 meter
f = + 50 cm
hope it helps
please mark as brainiest if helped
we know that power p= 1/f
here +2 = 1/f
f = +1/2 meter
f = + 50 cm
hope it helps
please mark as brainiest if helped
Answered by
0
p=1/f
2=100/f
f=100/2
f=50
Answer is (b) 50
2=100/f
f=100/2
f=50
Answer is (b) 50
Similar questions