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MCQs

Total Questions : 175 | Page 7 of 18 pages
Question 61. What is reflection?
  1.    Bouncing back some portion of the incident radiation into another medium
  2.    Slowing down of light on entering another medium
  3.    Bouncing back some portion of the incident radiation into the same medium from which it came
  4.    Absorption by particles and re-emission of radiation of different frequencies
 Discuss Question
Answer: Option C. -> Bouncing back some portion of the incident radiation into the same medium from which it came
Answer: (c).Bouncing back some portion of the incident radiation into the same medium from which it came
Question 62. About quarter of the incoming solar radiation is scattered.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 63. Which among the following is the best reflector?
  1.    Rock
  2.    Aluminum
  3.    Iron
  4.    Snow
 Discuss Question
Answer: Option D. -> Snow
Answer: (d).Snow
Question 64. Earth reflects about 36% of the incoming radiation.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 65. Which of the following types of clouds has the highest albedo?
  1.    Stratocumulus
  2.    Altocumulus
  3.    Cirrus
  4.    Cirrocumulus
 Discuss Question
Answer: Option A. -> Stratocumulus
Answer: (a).Stratocumulus
Question 66. What are the two basic ways to measure solar radiation?
  1.    Ground-based instrumentation and satellite measurement
  2.    Telephonic measurement and mobile tower measurement
  3.    Anemometer and voltmeter
  4.    Ammeter and voltmeter
 Discuss Question
Answer: Option A. -> Ground-based instrumentation and satellite measurement
Answer: (a).Ground-based instrumentation and satellite measurement
Question 67. How does actinometer work?
  1.    By determining the number of electrons in a beam integrally
  2.    By determining the number of protons in a beam differentially
  3.    By determining the direction of photons
  4.    By determining the number of photons integrally
 Discuss Question
Answer: Option D. -> By determining the number of photons integrally
Answer: (d).By determining the number of photons integrally
Question 68. What is does an actinometer measure?
  1.    Wind speed
  2.    Intensity of radiation
  3.    Wind direction
  4.    Direction of radiation
 Discuss Question
Answer: Option B. -> Intensity of radiation
Answer: (b).Intensity of radiation
Question 69. Actinometer is primarily used to measure ______ and ______
  1.    infrared and ultraviolet
  2.    visible and infrared
  3.    visible and ultraviolet
  4.    infrared and UV-A
 Discuss Question
Answer: Option C. -> visible and ultraviolet
Answer: (c).visible and ultraviolet
Question 70. As a system, actinometer is a _____ or _______
  1.    chemical system or physical device
  2.    chemical system or thermal device
  3.    thermal device or mechanical device
  4.    thermo-mechanical system or physical device
 Discuss Question
Answer: Option A. -> chemical system or physical device
Answer: (a).chemical system or physical device

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