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PHYSICS MCQs

Total Questions : 3767 | Page 8 of 377 pages
Question 71. The centre of gravity of a sprinter during the race lies
  1.    Ahead of his feet
  2.    Behind his feet
  3.    At the centre of the body
  4.    To the left side of the body
 Discuss Question
Answer: Option A. -> Ahead of his feet
Question 72. "God Particle" is
  1.    Neutrino
  2.    Higgs Boson
  3.    Meson
  4.    Positron
 Discuss Question
Answer: Option B. -> Higgs Boson
Question 73. The tidal waves on sea is mainly due to
  1.    Gravitational Effect of Moon on Earth
  2.    Gravitational Effect of Sun on Earth
  3.    Gravitational Effect of Earth on Moon
  4.    None of the above
 Discuss Question
Answer: Option A. -> Gravitational Effect of Moon on Earth
Question 74. The time period of a pendulum when taken to the Moon would:
  1.    Remain the same
  2.    Decrease
  3.    Become zero
  4.    Increase
 Discuss Question
Answer: Option D. -> Increase
Question 75. Who enunciated the laws of planetary motion?
  1.    Nicolaus Copernicus
  2.    Johannes Kepler
  3.    Isaac Newton
  4.    Galileo
 Discuss Question
Answer: Option B. -> Johannes Kepler
Question 76. The mass of a star is two times the mass of the Sun. How it will come to an end ?
  1.    Neutron Star
  2.    Black hole
  3.    White Dwarf
  4.    Red Giant
 Discuss Question
Answer: Option A. -> Neutron Star
Question 77. Which of the following celestial bodies contains abundant quantities of helium-3, a potential source of energy ?
  1.    Earth
  2.    Moon
  3.    Venus
  4.    Saturn
 Discuss Question
Answer: Option B. -> Moon
Question 78. The period of revolution of a certain planet in an orbit of radius R is T. Its period of revolution in an orbit of radius 4R will be:
  1.    8 T
  2.    4 T
  3.    1 T
  4.    2 T
 Discuss Question
Answer: Option A. -> 8 T
Question 79. Which of the following is indicated by the colour of a star ?
  1.    Weight
  2.    Distance
  3.    Temperature
  4.    Size
 Discuss Question
Answer: Option C. -> Temperature
Question 80. Which is evidence that supports the dynamo theory?
  1.    Earth's outer core contains liquid that conducts electricity
  2.    Earth's core contains a large amount of iron
  3.    Granite and basalt conduct electricity
  4.    Convection occurs in Earth's inner core
 Discuss Question
Answer: Option B. -> Earth's core contains a large amount of iron

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