Question

A parallel beam of light is incident on a converging lens parallel to its principal axis. As one moves away from the lens on the other side on its principal axis, the intensity of light
(a) remains constant
(b) continuously increases
(c) continuously decreases
(d) first increases then decreases.

Answer 1

Answer:

parallel beam of light is incident on a converging lens parallel to its principal axis . as one moves away from the lens on the other side on its principal axis , the intensity of lght. ... Beyond the focus the the rays begins to diverge, hence intensity decreases as we move further after crossing the focus

Explanation:

Answer 2

Answer:first increases then decreases

Explanation:

As we move away from the lens intensity increases till we approach the gocus and then devrease