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SSC - Physics Test-4
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SSC - Physics Test-4
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  • Question 1/10
    1 / -0

    SI unit of luminous intensity is ____.

    Solutions

    SI unit of luminous intensity is Candela.

  • Question 2/10
    1 / -0

    One astronomical unit is the average distance between:

    Solutions

    The Astronomical Unit (AU) is a unit of length, roughly the distancefrom the Earth to the Sun. AU is approximately 150 million kilometersor 93 million miles. It is approximately 8 light-minutes.

  • Question 3/10
    1 / -0

    Gamma rays are ______.

    Solutions

    Gamma raysrefer to electromagnetic radiation of an extremely high frequency and therefore consists of high-energy photons. Gamma rays are ionizing radiation and are thus biologically hazardous.

  • Question 4/10
    1 / -0

    A ‘rectifier’ is an electronic device used to convert ______.

    Solutions

    A rectifier is an electrical device which converts an alternating current into a direct one by allowing a current to flow through it in one direction only.

  • Question 5/10
    1 / -0

    Radio waves, microwaves, infra-red spectrum, ultraviolet rays, X-rays and gamma rays are classified as____.

    Solutions

    Electromagnetic radiationis the radiant energy released by certain electromagnetic processes. It consists of electromagnetic waveswhich are synchronized oscillations of electric and magnetic fields that propagate at the speed of light through a vacuum.

  • Question 6/10
    1 / -0

    What kind of energy is stored in a dry cell?

    Solutions

    Dry cellsare a type of chemical cells. Dry cells are commonly used today in the form of batteries.

  • Question 7/10
    1 / -0

    Which of the following physical quantities have the same dimensions?

    Solutions

    Work is the measure of aquantity that is capable of accomplishing Macroscopic Motion of a System due to the action of a Force over a Distance. Torque is the tendency of a force to rotate an object about an axis, fulcrum or pivot.

  • Question 8/10
    1 / -0

    In a transistor, the base is _____.

    Solutions

    Atransistor is a semiconductor device used to amplify and switch electronic signals and electrical power. It is composed of semiconductor material with at least three terminals for connection to an external circuit.

  • Question 9/10
    1 / -0

    The technique used by bats to find their way or to locate food is _______.

    Solutions

    Bats use echolocation to navigate and find food in the dark. To echolocate, bats send out sound waves from their mouth or nose. When the sound waves hit an object they produce echoes.

  • Question 10/10
    1 / -0

    What frequency range of E.M waves are used for commercial FM radio?

    Solutions

    The FM broadcast band used for FM broadcast radio by radio stations it frequency range of E.M waves are from 87.5 to 108.0megahertz (MHz)

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