Laser - Questions and Answers

6. The number of atoms in the excited state becomes much greater than the number of atoms in the ground state. This is known as

7. The light from a laser source is monochromatic because all the photons

8. The number of TV channels that can be accommodated using laser is

9. In Laser beam, the photons are in phase, the resultant intensity is given in terms of amplitude ‘a’ and number of photons ‘n’ is proportional to

10. The process of population inversion is to increase the number of atoms in the