Write short nots on (d) Visible light

Explanation

it is produced by incandescent bodies and also it is radiated by excited atoms in gases. The wavelength range is 4 `xx 10^(-7) m" to" 7 xx 10^(-7)` m and frequency range are `7 xx 10^(14)` Hz to `4 xx 10^(14)` Hz. If obeys the laws of reflection, refraction, interference, diffraction, polarization, photo-electric effect and photographic action. it can be used to study the structure of molecules, arrangement of electrons in external shells of atoms and sensation of our eyes.