Question

find the correlation and write in one sentence "power of lens and focal length"​

Answer 1

power of lens is the reciprocal of its focal lengh, mathematically,
P=1/f(in m)

Answer 2

Answer:

power of lens is:

if power of two lenses are p1 and pw then the power of their combination is given by the formula p= p1 +p2

Explanation:

If a lens has a shorter focal length it is said to be more powerful. The power of a lens is defined as the reciprocal of the focal length.