Physics miscellaneous

Physics miscellaneous

Easy Questions

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Physics miscellaneous
  1. Specific gravity is defined as the ratio of








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    Specific gravity is the ratio of the density of a substance to the density (mass of the same unit volume) of a reference substance. The reference substance is nearly always water for liquids or air for gases.

    Correct Option: A

    Specific gravity is the ratio of the density of a substance to the density (mass of the same unit volume) of a reference substance. The reference substance is nearly always water for liquids or air for gases.

  1. One bar is equal to








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    The bar is a non-SI unit of pressure. It is defined by the IUPAC as exactly equal to 100,000 Pa or 105 Pa.

    Correct Option: C

    The bar is a non-SI unit of pressure. It is defined by the IUPAC as exactly equal to 100,000 Pa or 105 Pa.

  1. A radioactive substance does not undergo any change (in mass or charge) during








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    Gamma-rays do not carry any charge. These rays do not have any mass and hence can not be considered to be made up of particles.

    Correct Option: A

    Gamma-rays do not carry any charge. These rays do not have any mass and hence can not be considered to be made up of particles.

  1. The motion of a body that repeats itself after a regular interval of time is








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    The motion of a body that repeats itself after a regular interval of time is called ‘Periodic Motion’. Simple Harmonic Motion is a type of periodic motion where the restoring force is directly proportional to the displacement.

    Correct Option: A

    The motion of a body that repeats itself after a regular interval of time is called ‘Periodic Motion’. Simple Harmonic Motion is a type of periodic motion where the restoring force is directly proportional to the displacement.

  1. When a piece of stone is immersed in water, it displaces water of equal








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    Archimedes’ Principle states that upward buoyant force exerted on a body immersed in a fluid is equal to the weight of the fluid the body displaces.

    Correct Option: C

    Archimedes’ Principle states that upward buoyant force exerted on a body immersed in a fluid is equal to the weight of the fluid the body displaces.