Question

a lens has a focal length -10 CM what is the pider of lens and what is nature​

Answer 1

Answer:

Explanation:

Power of lens is  P  = $\frac{100}{f}$  (in cm )

                          P = $\frac{100}{-10}$

                            = - 10 D

Since the focal length is negative, it is a concave lens or diverging lens.