Correct Answer is: none of these

Polarization of Light MCQ Multiple Choice Questions

Q: 32. Plane of vibration is defined only for

Correct Answer is: neither plane polarised & nor unpolarised

Q: 34. Ruby laser produces the laser beam of wavelength

Correct Answer is: 6940 Amstrong

Q: 37. The He - Ne laser is

Correct Answer is: pulsed laser

Q: 38. The material in which the population inversion is achieve is called as

Correct Answer is: stable states

Q: 39. The method of achieving population inversion in He – Ne Laser is

Correct Answer is: chemical reaction

Q: 40. The method of achieving population inversion in Ruby Laser is

Correct Answer is: chemical reaction

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

Correct Answer is: electron impact

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

Correct Answer is: None of above

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

Correct Answer is: None of above

31. Optic axis is

an imaginary line inside the crystal
a real line inside the crystal
a real direction inside the crystal
none of these

32. Plane of vibration is defined only for

plane polarised
unpolarised
both plane polarised & unpolarised
neither plane polarised & nor unpolarised

33. Principle planes in calcite crystals are

squares
rhombus
triangles
parallelograms

34. Ruby laser produces the laser beam of wavelength

6943 Amstrong
6328 Amstrong
6320 Amstrong
6940 Amstrong

35. The acute angle between the planes of crystal is

78 degree
71 degree
102 degree
109 degree

36. The coherence length of Laser light is

4000 Amstrong
8000 Amstrong
300 m
2 Âµm

37. The He - Ne laser is

Continuous Laser
gas Laser
semiconductor laser
pulsed laser

38. The material in which the population inversion is achieve is called as

Active medium
metastable state
passive medium
stable states

39. The method of achieving population inversion in He – Ne Laser is

Optical pumping
inelastic Scattering
forward biasing
chemical reaction

40. The method of achieving population inversion in Ruby Laser is

Optical pumping
inelastic Scattering
forward biasing
chemical reaction

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

molecule collision
direction conversion
electric discharge
electron impact

42. The Nicol prism based on the action of

reflection
Double refraction
refraction
scattering

43. The obtuse angle between the planes of crystal is

78 degree
71 degree
102 degree
109 degree

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

Plane of vibration
Plane of Polarisation
principal Plane
None of above

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

Plane of vibration
Plane of Polarisation
Principal Plane
None of above

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

double refraction
optical activity
polarization
Dichroism

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

double refraction
optical activity
polarization
dichroism

48. The Ruby laser is

Continuous Laser
gas Laser
semiconductor laser
pulsed laser

49. The shape of E -wave front is

plane
spherical
elliptical
cylindrical

50. The shape of O -wave front is

plane
spherical
elliptical
cylindrical

51. The Specific rotation is

independent of wavelength
directly proportional to wavelength
inversely proportional to wavelength
inversely proportional to square wavelength

52. The thickness of crystal in an LCD is chosen so that it rotates the plane of vibration of plane polarized light by

45 degree
90 degree
30 degree
60 degree

53. The waves forming ordinary image are

plane polarised
unpolarised
partially polarised
any of above

54. What happen if the ordinary unpolarised light is passed through a Uniaxial crystal

light is split into two rays
Light remain unaffected
light is split into more than two rays
None of them

55. What happen to O and E rays if they travel along the optic Axis?

Both ray travel with the same velocity
O ray travels faster than E ray
E ray travel faster than O ray
none of these

56. What is the life time of electron in metastable state?

10^-3 sec
10^-5 Sec
10^-8 sec
10^-7 sec

57. What is the wavelength of red light emitted by a helium-neon laser?

122 nanometers
633 nanometers
2.43 nanometers
1.37 micrometers

58. When a beam of ordinary white light is passed through a Polaroid plate filter, the intensity of the beam that emerges is

Equal to that of the incident beam
About 0.9 that of the incident beam
About one-half that of the incident beam
Practically zero

59. When light travels parallel to the optic axis

double refraction is observed
double refraction is not observed
Path difference between O and E waves
Both B and C.

60. When the light is incident at the polarizing angle which of the following completely polarised

Reflected light
Refracted light
both
neither reflected Nor Refracted

Polarization of Light MCQ Multiple Choice Questions - Page 2 for Practice

Polarization of Light MCQ Questions for Practice

31. Optic axis is

32. Plane of vibration is defined only for

33. Principle planes in calcite crystals are

34. Ruby laser produces the laser beam of wavelength

35. The acute angle between the planes of crystal is

36. The coherence length of Laser light is

37. The He - Ne laser is

38. The material in which the population inversion is achieve is called as

39. The method of achieving population inversion in He – Ne Laser is

40. The method of achieving population inversion in Ruby Laser is

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

42. The Nicol prism based on the action of

43. The obtuse angle between the planes of crystal is

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

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

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

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

48. The Ruby laser is

49. The shape of E -wave front is

50. The shape of O -wave front is

51. The Specific rotation is

52. The thickness of crystal in an LCD is chosen so that it rotates the plane of vibration of plane polarized light by

53. The waves forming ordinary image are

54. What happen if the ordinary unpolarised light is passed through a Uniaxial crystal

55. What happen to O and E rays if they travel along the optic Axis?

56. What is the life time of electron in metastable state?

57. What is the wavelength of red light emitted by a helium-neon laser?

58. When a beam of ordinary white light is passed through a Polaroid plate filter, the intensity of the beam that emerges is

59. When light travels parallel to the optic axis

60. When the light is incident at the polarizing angle which of the following completely polarised

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Polarization of Light MCQ Multiple Choice Questions - Page 2 for Practice

Polarization of Light MCQ Questions for Practice

31. Optic axis is

32. Plane of vibration is defined only for

33. Principle planes in calcite crystals are

34. Ruby laser produces the laser beam of wavelength

35. The acute angle between the planes of crystal is

36. The coherence length of Laser light is

37. The He - Ne laser is

38. The material in which the population inversion is achieve is called as

39. The method of achieving population inversion in He – Ne Laser is

40. The method of achieving population inversion in Ruby Laser is

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

42. The Nicol prism based on the action of

43. The obtuse angle between the planes of crystal is

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

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

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

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

48. The Ruby laser is

49. The shape of E -wave front is

50. The shape of O -wave front is

51. The Specific rotation is

52. The thickness of crystal in an LCD is chosen so that it rotates the plane of vibration of plane polarized light by

53. The waves forming ordinary image are

54. What happen if the ordinary unpolarised light is passed through a Uniaxial crystal

55. What happen to O and E rays if they travel along the optic Axis?

56. What is the life time of electron in metastable state?

57. What is the wavelength of red light emitted by a helium-neon laser?

58. When a beam of ordinary white light is passed through a Polaroid plate filter, the intensity of the beam that emerges is

59. When light travels parallel to the optic axis

60. When the light is incident at the polarizing angle which of the following completely polarised

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