JEE Main & Advanced Physics Communication System / संचार तंत्र Question Bank Assertion and Reason

  • question_answer
    Assertion             :       In high latitude one sees colourful curtains of light hanging down from high altitudes. Reason                 :   The high energy charged particles from the sun are deflected to polar regions by the magnetic field of the earth.                    [AIIMS 2003]

    A)             If both assertion and reason are true and the reason is the correct explanation of the assertion.

    B)             If both assertion and reason are true but reason is not the correct explanation of the assertion.

    C)             If assertion is true but reason is false.

    D)             If the assertion and reason both are false.

    E)             If assertion is false but reason is true.

    Correct Answer: A

    Solution :

                Microwave communication is preferred over optical communication because microwaves provide large number of channels and wider band width compared to optical signals as information carrying capacity is directly proportional to band width. So, wider the band width, greater the information carrying capacity.


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