Question

name the type of lens of the power is -2.00 find the focal length of this lens​

Answer 1

Answer:

Can't you do it yourself

Answer 2

Answer:

The focal length f is positive for converging lenses, and negative for diverging lenses. The reciprocal of the focal length, 1/f, is the optical power of the lens. If the focal length is in metres, this gives the optical power in dioptres (inverse metres).