Question

the power of lens of focal length 1 cm is

Answer 1

hey mate! here is your ans...

power = 1/focal length(in metres)

so, p= 1/0.01=100 D

Answer 2

Answer:

The central length of an optical framework is a proportion of how emphatically the framework merges or separates light.

For an optical framework in air, it is the separation over which at first collimated beams are conveyed to a core interest.

Optical power (likewise alluded to as dioptric control, refractive power, centering force, or assembly control) is how much a focal point, reflect, or other optical framework combines or separates light.

It is equivalent to the proportional of the central length of the gadget: P = 1/f.