Polarization of Light Multiple Choice Questions and Answers

41. The method of population inversion to the laser action in He-Ne laser is

1. molecule collision
2. direction conversion
3. electric discharge
4. electron impact

42. The Nicol prism based on the action of

1. reflection
2. Double refraction
3. refraction
4. scattering

43. The obtuse angle between the planes of crystal is

1. 78 degree
2. 71 degree
3. 102 degree
4. 109 degree

44. The plane in which the electric field vector of plane polarised light vibrates is known as

1. Plane of vibration
2. Plane of Polarisation
3. principal Plane
4. None of above

45. The plane in which the magnetic field vector of plane polarised light vibrates is known as

1. Plane of vibration
2. Plane of Polarisation
3. Principal Plane
4. None of above

46. The property of rotating the plane of vibration of plane polarized light is known as

1. double refraction
2. optical activity
3. polarization
4. Dichroism

47. The property of rotating the plane of vibration of plane polarized light is known as

1. double refraction
2. optical activity
3. polarization
4. dichroism

48. The Ruby laser is

1. Continuous Laser
2. gas Laser
3. semiconductor laser
4. pulsed laser

49. The shape of E -wave front is

1. plane
2. spherical
3. elliptical
4. cylindrical

50. The shape of O -wave front is

1. plane
2. spherical
3. elliptical
4. cylindrical