A device has power-2 diopter .The device is.
a)a convex lens of focal length 50cm
b)a convex lens of focal length 2cm.
c)a concave lens of focal length 50cm
Answers
Answered by
0
the correct answer is option c
Answered by
1
Answer:
option C is correct
Explanation:
p =1/f(m)
Similar questions