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    The signal frequency in a CRO is:
    Question

    The signal frequency in a CRO is:

    A.

    less than 1 MHz

    B.

    more than 1 MHz

    C.

    more than 10 MHz

    D.

    more than 10 Hz

    Correct option is C


    CRO is an instrument that converts electrical signals to a visual display. It can be used to measure voltage, frequency and phase, also used for measurement of electrical quantities like amplitude and time period.
    After deflection, the speed of electrons is reduced. So, to increase the speed, the signal frequency in a CRO is kept at more than 10 MHz.

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