Sound


  1. Consider the following statements
    1. X - rays show transverse wave characteristics
    2. X - rays can eject electrons from certain metal surfaces
    3. X - rays of 0. 1 A° are harder than X - rays of 0.2 A°.
    Which of the statements given above is / are correct ?









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    NA

    Correct Option: D

    NA


  1. Consider the following statements
    1. sound waves are elastic waves
    2. In sound waves, the vibrations are perpendicular to the direction in which the wave travels.
    Which of these statement is / are correct ?









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    NA

    Correct Option: A

    NA



  1. Consider the following statements : X - rays
    1. Can pass through thin sheets of aluminium
    2. Can be deflected by magnetic field
    3. Move with a velocity less than the velocity of ultraviolet rays in vacuum
    Which of the statement given above is / are correct ?









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    NA

    Correct Option: B

    NA


  1. Consider the following statements
    1. A geo-stationary satellite is at an approximate height of 10,000 km
    2. FM transmission of music is a very good quality because the atmospheric or man made noises which are generally frequency variations can do little harm.
    Which of the statements give above is / are correct?









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    NA

    Correct Option: B

    NA



  1. When the same note is played on a sitar and flute, the sound produced can be distinguished from each other because of the difference in









  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: C

    NA