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General Knowledge :: Physics

  1. Proton carry a

  2. A.

     Positive Charge

    B.

     Negative Charge

    C.

     Variable Charge

    D.

     Neutral Charge

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

  4. A.

     Betatron

    B.

     Cyclotron

    C.

     Synchrotron

    D.

     Van de Graft Generator

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

  6. 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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  7. What is a neuron ?

  8. 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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  9. Which electromagnetic radiation is used for satellite communication ?

  10. A.

     Ultraviolet

    B.

     Infrared

    C.

     Radiowave

    D.

     Millimeter wave

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

  12. A.

     Single casting

    B.

     Spreading

    C.

     Multicasting

    D.

     Casting

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

  14. A.

     Amplitude Movement

    B.

     Anywhere Movement

    C.

     Amplitude Matching

    D.

     Amplitude Modulation

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

  16. A.

     Troposphere

    B.

     Stratosphere

    C.

     Mesosphere

    D.

     Ionosphere

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  17. Bandwidth is the

  18. 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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  19. Negative feedback in amplifiers

  20. 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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