Physics Gk interview questions – page 3

69 questions. Tap “Show answer” to check yourself.

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  1. The frequency higher than 20,000 Hz is

    1. Ultrasonic
    2. Infrasonic
    3. Audible
    4. Sonic
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    A. Ultrasonic

  2. The sound waves travel

    1. in curved path
    2. as transverse waves
    3. as longitudinal waves
    4. in straight line
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    D. in straight line

  3. The velocity of sound is greatest in

    1. Vacuum
    2. Gases
    3. Liquid
    4. Solid
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    D. Solid

  4. In neutral equilibrium the centre of gravity is

    1. Raised
    2. Lowered
    3. Neither raised nor lowered
    4. Lowered and raised
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    C. Neither raised nor lowered

  5. Fortin’s barometer is used to measure the atmospheric _____

    1. Relative density
    2. Density
    3. Pressure
    4. Temperature
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    C. Pressure

  6. Plimsoll lines are marked on the sides of the ____

    1. Aeroplanes
    2. Ships
    3. Trains
    4. Buses
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    B. Ships

  7. The gas which turns lime water milky is _____

    1. Argon
    2. Nitrogen
    3. Carbon dioxide
    4. Oxygen
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    C. Carbon dioxide

  8. An essential plant nutrient is _____

    1. Phosphorus
    2. Iron
    3. Calcium
    4. Carbon
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    A. Phosphorus

  9. In retina, rods and cones may be highly concentrated at _____

    1. Cornea
    2. Pupil
    3. Fovea
    4. Blind spot
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    C. Fovea

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