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PHYSICS MCQs

Total Questions : 3767 | Page 373 of 377 pages
Question 3721. Contact force is another name for ________
  1.    Electrostatic force
  2.    Muscular force
  3.    Magnetic force
  4.    Friction
 Discuss Question
Answer: Option B. -> Muscular force
Question 3722. At boiling point of liquids, its
  1.    Atmospheric pressure increases
  2.    Temperature increases
  3.    Temperature remains constant
  4.    Vapour pressure decreases
 Discuss Question
Answer: Option C. -> Temperature remains constant
Question 3723. At hill stations, the boiling point of water will be
  1.    Less than that at sea level
  2.    Same as at sea level
  3.    Equal to the melting point of ice
  4.    More than that at sea level
 Discuss Question
Answer: Option A. -> Less than that at sea level
Question 3724. The wall of a dam is made thicker at the bottom than at the top because the pressure exerted by the water on the wall
  1.    Depends on the area of the wall
  2.    Increases with depth of the wall
  3.    Depends on the thickness of the wall
  4.    Increases with height of the wall
 Discuss Question
Answer: Option B. -> Increases with depth of the wall
Question 3725. When pressure is increased the melting point of ice
  1.    Depends on the impurities in the ice
  2.    Does not change
  3.    Increases
  4.    Decreases
 Discuss Question
Answer: Option D. -> Decreases
Question 3726. The wall of a dam is broader at the base
  1.    To withstand pressure that increases with depth
  2.    To withstand pressure that is increased with atmospheric pressure
  3.    Because streamlining is required
  4.    To withstand pressure that increases in a horizontal plane
 Discuss Question
Answer: Option A. -> To withstand pressure that increases with depth
Question 3727. Instrument used to measure the force and velocity of the wind is
  1.    Audiometer
  2.    Anemometer
  3.    Ammeter
  4.    Altimeter
 Discuss Question
Answer: Option B. -> Anemometer
Question 3728. The spokes used in the wheel of a bicycle increase its
  1.    Velocity
  2.    Acceleration
  3.    Momentum
  4.    Moment of inertia
 Discuss Question
Answer: Option D. -> Moment of inertia
Question 3729. It is easy to burst a gas-filled balloon with a needle than with a nail. It is because
  1.    Nail exerts more pressure than needle on the balloon.
  2.    Nail is more longer than needle.
  3.    Needle exerts more pressure than nail on the balloon.
  4.    Gas is reactive with the needle.
 Discuss Question
Answer: Option C. -> Needle exerts more pressure than nail on the balloon.
Question 3730. It is difficult to cook rice
  1.    At the sea level
  2.    Under a mine
  3.    At the top of a mountain
  4.    Same anywhere
 Discuss Question
Answer: Option C. -> At the top of a mountain

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