Find the power of a concave lens of focal length 2 m.
ScienceClass 10CBSEAnswered 27 Mar 2026
Answer
The focal length of the concave lens (f) = 2 m
Power of lens (P) = 1/f = 1/ (-2) = -0.5D
The focal length of the concave lens (f) = 2 m
Power of lens (P) = 1/f = 1/ (-2) = -0.5D