Practice test

Oscillation and waves - Test Set 1

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    Gamma rays can cause:
    1. Gene mutation
    2. Sneezing
    3. Iodine
    4. Sodium chloride
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  2. Question 2

    Ultraviolet radiations has more energy as compare to:
    1. Infrared Radiation
    2. Gamma Radiation
    3. X-Rays
    4. Space Rays
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  3. Question 3

    Ultraviolet rays can be used in water treatment as:
    1. Precipitator
    2. Hydrolyser
    3. Disinfectant
    4. Flocculator
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  4. Question 4

    The device used for measuring the wavelength of X-rays is:
    1. Cyclotron
    2. Bragg’s Spectrometer
    3. Mass spectrometer
    4. GM counter
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  5. Question 5

    Radar is used to:
    1. To locate submerged submarines.
    2. Receive signal from radio receivers.
    3. Detect and locate distant objects.
    4. Locate geostationary satellites.
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  6. Question 6

    Who discovered X-Rays?
    1. Roentgen
    2. Becquerel
    3. Marie curie
    4. Wan Loo
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  7. Question 7

    The least penetrating power ray is:
    1. α-rays
    2. β-ray
    3. γ-rays
    4. X-ray
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  8. Question 8

    X-rays can be used:
    1. To detect defects in precious stones and diamonds.
    2. To detect heart diseases.
    3. To detect gold under the earth
    4. For cutting and welding of metals.
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  9. Question 9

    Wavelength of visible spectrum is:
    1. 1300 Å - 3000 Å
    2. 3900 Å - 7600 Å
    3. 7800 Å - 8000 Å
    4. 8500 Å - 9800 Å
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  10. Question 10

    In a Filament type Light bulb most of the electric power consumed appear as:
    1. Visible Light
    2. Infrared Light
    3. Ultraviolet
    4. Fluorescent Light
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  11. Question 11

    Which of the following is used in MRI machine?
    1. Sound wave
    2. X-rays
    3. Ultrasonic wave
    4. Magnetic wave
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  12. Question 12

    A wavelength of 0.3 m is produced in air and it travels at a speed of 300 m/s. Then it will be an:
    1. Audible wave
    2. Ultrasonic
    3. Microwave
    4. Infrasonic
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  13. Question 13

    Bolometer is used to measure which of the following?
    1. Frequency
    2. Temperature
    3. Velocity
    4. Wavelength
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  14. Question 14

    Coolidge tube is used to produce:
    1. Radio waves
    2. Micro waves
    3. X-rays
    4. Gamma rays
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  15. Question 15

    Which of the following parts of the sunlight makes the solar cooker hot?
    1. Ultraviolet
    2. Red light
    3. Infrared
    4. Cosmic rays
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  16. Question 16

    When a vehicle passes, TV reception gets distorted. This is because:
    1. Metal reflects radiowaves
    2. Spark plug creates electromagnetic disturbances
    3. Vehicle pollution affects the performance of the TV components
    4. Modern vehicles use electro-ignition system
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  17. Question 17

    Where are mesons found?
    1. Cosmic rays
    2. X-rays
    3. Gamma rays
    4. Laser beam
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  18. Question 18

    Gamma rays have greatest similarity with:
    1. α-rays
    2. β-rays
    3. X-rays
    4. U.V.-rays
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  19. Question 19

    The scientist who first sent electromagnetic waves to distant places is:
    1. James Clerk Maxwell
    2. Heinrich Hertz
    3. Thomas Alva Edison
    4. John Logic Baird
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  20. Question 20

    The audio signals of TV are:
    1. Amplitude modulated
    2. Frequency modulated
    3. Unmodulated
    4. Velocity modulated
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