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PHYSICS MCQs

Total Questions : 3767 | Page 7 of 377 pages
Question 61. ML2T-2 is the dimensional formula for
  1.    moment of inertia
  2.    pressure
  3.    elasticity
  4.    couple acting on a body
 Discuss Question
Answer: Option D. -> couple acting on a body
Question 62. Solar eclipse will take place when
  1.    the sun is between the moon and the earth
  2.    the earth is between the moon and the sun
  3.    the moon is between the sun and the earth
  4.    the moon does not lie on the line joining the sun and the earth
 Discuss Question
Answer: Option C. -> the moon is between the sun and the earth
Question 63. Isotopes of an element contain
  1.    the same number of protons but different number of neutrons
  2.    the same number of neutrons but different number of protons
  3.    equal number of protons and electrons
  4.    equal number of nucleons
 Discuss Question
Answer: Option A. -> the same number of protons but different number of neutrons
Question 64. One watt-hour is equivalent to
  1.    6.3 x 103 J
  2.    6.3 x 10-7 J
  3.    3.6 x 103 J
  4.    3.6 x 10-3 J
 Discuss Question
Answer: Option C. -> 3.6 x 103 J
Question 65. Sir C.V. Raman was awarded Nobel Prize for his work connected with which of the following phenomenon of radiation?
  1.    Scattering
  2.    Diffraction
  3.    Interference
  4.    Polarization
 Discuss Question
Answer: Option A. -> Scattering
Question 66. In which of the following industries is mica as a raw material?
  1.    Cement
  2.    Glass and Pottery
  3.    Iron and Steel
  4.    Electrical
 Discuss Question
Answer: Option D. -> Electrical
Question 67. Radiocarbon dating technique is used to estimate the age of
  1.    rocks
  2.    monuments
  3.    soil
  4.    fossils
 Discuss Question
Answer: Option D. -> fossils
Question 68. Identify the vector quantity from the following
  1.    Heat
  2.    Angular momentum
  3.    Time
  4.    Work
 Discuss Question
Answer: Option B. -> Angular momentum
Question 69. Large astronomical telescopes always use as objective
  1.    lens
  2.    mirror
  3.    combinations of lenses
  4.    None of the above
 Discuss Question
Answer: Option C. -> combinations of lenses
Question 70. One should not connect a number of electrical appliances to the same power socket because
  1.    this can damage the appliances due to overloading
  2.    this can damage the domestic wiring due to overloading
  3.    this can damage the electrical meter
  4.    the appliance will not get full voltage
 Discuss Question
Answer: Option B. -> this can damage the domestic wiring due to overloading

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