A convex lens of focal length 25 cm is placed coaxially in contact with concave lens of focal length 20cm determine the power of the combination when the system converging or diverging
Answers
Answered by
2
p=1/f +1/f. for combination
=100/25 +100/20. ( to get 25and 20 cm as m )
=5+4.
=9 D. (d is dioptre)
=100/25 +100/20. ( to get 25and 20 cm as m )
=5+4.
=9 D. (d is dioptre)
Answered by
0
hmm g, and the rest of the day, the only thing I have a friend. I am fine, I think the best 6th 4th 445 to
Similar questions