Laser QUESTIONS AND ANSWERS

Basic Science : Laser QUESTIONS AND ANSWERS :: part1 : 6 to 10

Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :

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

8 million

40 million

80 million

4 million

7.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

n2a

n2a2

na2

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

excited state

ground state

intermediate state

excited state and ground state

9.In normal population, the number of atoms in the

excited state is more

ground state is more

excited state is equal to the ground state