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PHYSICS MCQs

Total Questions : 3767 | Page 58 of 377 pages
Question 571. Two stones of different masses are dropped simultaneously from the top of a building
  1.    Smaller stone reaches the ground earlier
  2.    Larger stone reaches the ground earlier
  3.    Both the stones reach the ground at the same time
  4.    Depends on the composition of the stone
 Discuss Question
Answer: Option C. -> Both the stones reach the ground at the same time
Question 572. Momentum is measured as the product of :
  1.    Mass and inertia
  2.    Mass and force
  3.    Mass and velocity
  4.    Mass and acceleration
 Discuss Question
Answer: Option C. -> Mass and velocity
Question 573. A man jumping out of a moving train is thrown
  1.    Forward
  2.    Backward
  3.    Sideways
  4.    None of these
 Discuss Question
Answer: Option A. -> Forward
Question 574. An object at rest will remain at rest and an object in motion will remain in motion until and unless it is acted upon by an external force. This is Newton's
  1.    First law
  2.    Second law
  3.    Third law
  4.    Fourth law
 Discuss Question
Answer: Option A. -> First law
Question 575. What is the force of attraction between any two bodies by virtue of their masses is called?
  1.    Electromagnetic Force
  2.    Gravitational Force
  3.    Centripetal Force
  4.    Nuclear Force
 Discuss Question
Answer: Option B. -> Gravitational Force
Question 576. If a boy sitting in a train, which is moving at a constant velocity, throws a ball straight up into the air, the ball will
  1.    Fall in front of him
  2.    Fall behind him
  3.    Fall into his hand
  4.    None of the above
 Discuss Question
Answer: Option C. -> Fall into his hand
Question 577. When a bar magnet is cut into two equal halves, the pole strength of each piece –
  1.    Becomes double
  2.    Becomes half
  3.    Becomes zero
  4.    Remains the same
 Discuss Question
Answer: Option D. -> Remains the same
Question 578. A permanent magnet can affect
  1.    Magnets
  2.    Electromagnets
  3.    Both A & B
  4.    None of the above
 Discuss Question
Answer: Option C. -> Both A & B
Question 579. A freely suspended magnet remains horizontal at
  1.    The magnet equator
  2.    The magnetic north pole
  3.    The magnetic south pole
  4.    The geographic pole
 Discuss Question
Answer: Option A. -> The magnet equator
Question 580. Magnetic keepers are used to protect magnets from :
  1.    Earth's magnetic field
  2.    Effect of other magnets
  3.    Self-demagnetization
  4.    Demagnetization due to heating
 Discuss Question
Answer: Option C. -> Self-demagnetization

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