CUET Preparation Today
Which of the following is true for power of a concave lens? |
Power of a concave lens is always positive Power of a concave lens is always negative Power of a concave lens is zero Power of a concave lens is infinite |
Power of a concave lens is always negative |
Power of a lens, P = \(\frac{1}{f}\) where f is in metres. Focal length of concave lens is always negative Hence, Power of concave lens is also negative. |
