A photon of ` 300 nm` ios absorbed by a gas and then re-emits two photons . One re-emitte
Channel: Doubtnut
Date: 2020-08-02

A photon of ` 300 nm` ios absorbed by a gas and then re-emits two photons . One re-emitte photon has wavelnght ` 4967 nm`, the wavelength fo second re-emitte photon is :