Introduction and Applications of Laser MCQ

Test your knowledge with important Introduction and Applications of Laser MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Introduction and Applications of Laser MCQs on Bissoy. Bissoy App

• The following graph is pictorial representation of _________
  ক

  Spontaneous emission

  খ

  Spontaneous Absorption

  গ

  Stimulated emission

  ঘ

  Stimulated Absorption
• What is the region enclosed by the optical cavity called?
  ক

  Optical Region

  খ

  Optical System

  গ

  Optical box

  ঘ

  Optical Resonator
• Which characteristic of LASER allows it to be used in holography?
  ক

  Coherency

  খ

  Directionality

  গ

  Intensity

  ঘ

  Monochromaticity
• The information carrying capacity of laser is enormous due its large _________
  ক

  Coherence

  খ

  Bandwidth

  গ

  Directionality

  ঘ

  Intensity
• Where is ND: YAG most commonly used?
  ক

  Cosmetic Surgery

  খ

  Welding

  গ

  Photography

  ঘ

  Optical Communications
• Lasers are used for welding of wires because they can be focused onto a fine spot.
  ক

  True

  খ

  False
• The output of a laser has pulse duration of 30 ms and average output power of 1 W per pulse. How much energy is released per pulse if wavelength is 6600 Å?
  ক

  0.001 J

  খ

  0.002 J

  গ

  0.003 J

  ঘ

  0.004 J
• Laser is used in LIDAR for what purpose?
  ক

  High-Speed Photography

  খ

  Range finder

  গ

  Optical Carrier signal

  ঘ

  Drilling
• Which of the following is not a characteristic of LASERS?
  ক

  Monochromatic

  খ

  Coherent

  গ

  Divergent

  ঘ

  Intense
• Phonons are __________
  ক

  Quanta of energy

  খ

  Quanta of light waves

  গ

  Quanta of sound waves

  ঘ

  Quanta of heat
• In Stimulated Absorption, what is the lifetime of atoms ground state?
  ক

  1 second

  খ

  1 minute

  গ

  1 hour

  ঘ

  Infinity
• What is the full form of LASER?
  ক

  Light Absorbent and Stimulated Emission of Radiations

  খ

  Light Absorbing Solar Energy Resource

  গ

  Light Amplification by Stimulated Emission of Radiations

  ঘ

  Light Amplification of Singular Emission of Radiations