Question

Laser action occurs by transition from an excited state
(E, to the ground state (E, = 0). If the transition
produces a light of wavelength 6930 Å, find the energy
level of the excited state.
​

Answer 1

Answer:

ttxyfy hcjcvuvu vulgar vvivj ib under j yb

Explanation:

he also vv cuuggu vuvuvvuv uvvu u u u u uu uu u u u j u j u uuucyyctctc y yiii