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  1. Proton carry a

    2. A.

     Positive Charge
    B.

     Negative Charge
    C.

     Variable Charge
    D.

     Neutral Charge

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  2. Which of the following is preferred for accelerating electrons?

    3. A.

     Betatron
    B.

     Cyclotron
    C.

     Synchrotron
    D.

     Van de Graft Generator

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  3. Why does'nt the hydrogen atom emit X-rays?

    4. A.

     It is very small in size
    B.

     It has only one electron
    C.

     Its energy levels are very close to each other
    D.

     It is highly electropositive

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  4. What is a neuron ?

    5. A.

     Basic unit of energy
    B.

     Particle released during radioactivity
    C.

     The anti-particle of neutron
    D.

     Basic unit of nervous system

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  5. Which electromagnetic radiation is used for satellite communication ?

    6. A.

     Ultraviolet
    B.

     Infrared
    C.

     Radiowave
    D.

     Millimeter wave

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  6. Sending a frame to a group of stations is known as

    7. A.

     Single casting
    B.

     Spreading
    C.

     Multicasting
    D.

     Casting

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  7. What is the full form of ''AM' regarding radio broadcasting?

    8. A.

     Amplitude Movement
    B.

     Anywhere Movement
    C.

     Amplitude Matching
    D.

     Amplitude Modulation

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  8. Radio waves sent out by a radio stations are reflected by

    9. A.

     Troposphere
    B.

     Stratosphere
    C.

     Mesosphere
    D.

     Ionosphere

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  9. Bandwidth is the

    10. A.

     A measure of the width of a range of frequencies
    B.

     The rate of data transfer
    C.

     Both a & b
    D.

     None of the above

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  10. Negative feedback in amplifiers

    11. A.

     Increases bandwidth and decreases noise
    B.

     Decreases bandwidth and decreases noise
    C.

     Increases bandwidth and increases noise
    D.

     Decreases bandwidth and increases noise

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