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PHYSICS MCQs

Total Questions : 3767 | Page 74 of 377 pages
Question 731. Relative humidity is expressed as
  1.    Grams
  2.    Kilograms
  3.    Percentage
  4.    Ratio
 Discuss Question
Answer: Option C. -> Percentage
Question 732. According to special theory of relativity the mass of a particle
  1.    Increases with increase in velocity with respect to an observer.
  2.    Decreases with increase in velocity.
  3.    Decreases with decrease in velocity.
  4.    Is independent of its velocity.
 Discuss Question
Answer: Option A. -> Increases with increase in velocity with respect to an observer.
Question 733. Boyle's law relates to
  1.    Kinetic Theory of Gases
  2.    Viscosity of Liquids
  3.    Elasticity of Solids
  4.    Plasticity of Solids
 Discuss Question
Answer: Option A. -> Kinetic Theory of Gases
Question 734. Bolometer is used to measure
  1.    Frequency
  2.    Temperature
  3.    Velocity
  4.    Wavelength
 Discuss Question
Answer: Option B. -> Temperature
Question 735. Charles's law is based on
  1.    Solid
  2.    Liquid
  3.    Gas
  4.    None of the above
 Discuss Question
Answer: Option C. -> Gas
Question 736. The ''Greenhouse effect' is mainly due to increase in atmospheric
  1.    Ozone
  2.    Nitrogen
  3.    Sulphur dioxide
  4.    Carbon dioxide
 Discuss Question
Answer: Option D. -> Carbon dioxide
Question 737. Thermohaline circulation is mainly due to
  1.    Cold, dense ocean water sinking and warmer water replacing it
  2.    Winds causing circulation of ocean water
  3.    Warmer, less dense water sinking in the ocean and cold water replacing it
  4.    Warm water being added to the ocean due to industial waste
 Discuss Question
Answer: Option A. -> Cold, dense ocean water sinking and warmer water replacing it
Question 738. Which of the following device is used to measure humidity?
  1.    Hydrometer
  2.    Hygrometer
  3.    Psycho Meter
  4.    Anemometer
 Discuss Question
Answer: Option B. -> Hygrometer
Question 739. Which set of conditions represents the easiest way to liquify a gas ?
  1.    Low temperature and high pressure
  2.    High temperature and low pressure
  3.    Low temperature and low pressure
  4.    High temperature and high pressure
 Discuss Question
Answer: Option A. -> Low temperature and high pressure
Question 740. The combined gas law relates which of the following?
  1.    Volume & Temperature
  2.    Temperature & Pressure
  3.    Volume & Pressure
  4.    Volume, Temperature & Pressure
 Discuss Question
Answer: Option D. -> Volume, Temperature & Pressure

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