collisional excitation sentence in Hindi

Examples

1. Initial collisional excitation can make up the energy shortfall allowing optical excitation to be used to select the final state.
2. For example, collisional excitation of the " n " = 2 level of hydrogen will release a Ly-? photon upon de-excitation.
3. With a good approximation, the number of occupied states at the superior level n _ u and the number of states at the inferior energy level n _ l are given by the equilibrium between collisional excitation and spontaneous emission