If the radius of curvature of lens is 30 cm ,then what is its focal length?
Answers
Answered by
1
Answer:
if the radius of curvature of the lens is 30 cm then the focal length of the lens is 15 cm
Answered by
2
Answer:
-15
Explanation:
f = - R / 2
= -30/2
= -15 so this is the answer
Similar questions