Question

of some of the optical physics i know! i need to know why electron absorb the incident light and jump to higher energy level....(answer should be given ---considering wave nature of light )

Answer 1

this is because matter interacts with light and since an electron forms part of matter it can absorb energy from light.when it absorbs the light then it becomes excited and jumps into a higher energy level.

Answer 2

this is photoelectric effect
when light of correct frequency and wavelength hits electron (it is actually photons that are emitted by light) these photons impart their enegy into electrons causing them to absorb energy,excite and go to the higher energy level

it is useful to know the relationship between wavelenth and frequency osf a particle

where c is speed of light