Question

5) The
power of a -----
lens is positive​

Answer 1

convex lens

please mark as braiainliest answers still one to next

Answer 2

Answer:

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. Lens power is measured in dioptres (D).

powerofalens(D)=1focallength(m)

P=1f

Converging (convex) lenses have positive focal lengths, so they also have positive power values.

Diverging (concave) lenses have negative focal lengths, so they also have negative power values.