image

    Have a query? Ask a Tutor!!

    Access to best educators and exclusive paper discussions

    Can’t find what you’re looking for?

    Our tutors are from top schools around the world, and they are waiting for you 24/7, anytime, anywhere.

    • Homework- One to One Solutions
    • Understand concepts to solve better
    • Get your doubts solved instantly
    Physics
    Grade-8
    Easy

    Question

    The pressure of a medium _____ when a longitudinal wave propagates through it.

    1. Becomes uniform
    2. Stays the same
    3. Becomes non-uniform
    4. Dilutes

    Hint:

    The longitudinal waves are called pressure waves. Propagation of longitudinal waves through a medium involves changes in pressure and volume of air when compression and rarefaction are formed.

    The correct answer is: Becomes non-uniform

      • The particles in a medium move back and forth in longitudinal waves.
      • It creates a pattern of compressions (high-pressure regions) and rarefactions (low-pressure regions).
      • Therefore the pressure of a medium becomes non-uniform.
      • So, the correct option is c.

      Related Questions to study

      Grade-8
      Physics

      The density of a medium ____ when a transverse wave propagates through it.

      1. Becomes zero
      2. Becomes non-uniform
      3. Dilutes
      4. Does not change

      The density of a medium ____ when a transverse wave propagates through it.

      PhysicsGrade-8
      1. Becomes zero
      2. Becomes non-uniform
      3. Dilutes
      4. Does not change
      Grade-8
      Physics

      Light waves are ______ waves.

      1. Transverse
      2. Longitudinal
      3. Mechanical
      4. Both a and c

      Light waves are ______ waves.

      PhysicsGrade-8
      1. Transverse
      2. Longitudinal
      3. Mechanical
      4. Both a and c
      Grade-8
      Physics

      When a longitudinal wave propagates through a medium in a forward direction, the particles of the medium move _____.

      1. Back and forth
      2. Up and down
      3. Sideways
      4. Both b and c

      When a longitudinal wave propagates through a medium in a forward direction, the particles of the medium move _____.

      PhysicsGrade-8
      1. Back and forth
      2. Up and down
      3. Sideways
      4. Both b and c
      parallel
      Grade-8
      Physics

      The loudness of a sound is given by its _____. 

      1. Amplitude
      2. Frequency
      3. Wavelength
      4. Time period

      The loudness of a sound is given by its _____. 

      PhysicsGrade-8
      1. Amplitude
      2. Frequency
      3. Wavelength
      4. Time period
      Grade-8
      Physics

      A louder sound is audible even if the source of sound is far away. This is because ____. 

      1. Louder sounds are of greater frequency 
      2. Louder sounds transfer a high amount of energy 
      3. Louder sounds are of smaller frequency 
      4. Louder sounds transfer a low amount of energy 

      A louder sound is audible even if the source of sound is far away. This is because ____. 

      PhysicsGrade-8
      1. Louder sounds are of greater frequency 
      2. Louder sounds transfer a high amount of energy 
      3. Louder sounds are of smaller frequency 
      4. Louder sounds transfer a low amount of energy 
      Grade-8
      Physics

      The picture below shows sound waves in different colors. Pick the color of the sound wave which is of the highest frequency. 
      Inserting image...

      1. Purple
      2. Blue
      3. Red
      4. Yellow

      The picture below shows sound waves in different colors. Pick the color of the sound wave which is of the highest frequency.