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Difficulty: EasyProduction, Propagation, and Classification of Waves

Which of the following types of waves requires a physical material medium for its propagation?

  1. Sound wavesAnswer
  2. B
    Radio waves
  3. C
    Infrared rays
  4. D
    Gamma rays

Answer

Sound waves are mechanical waves and require a material medium to propagate.
Sound waves are mechanical longitudinal waves. They propagate through compressions and rarefactions of particles in a medium, meaning they cannot travel through a vacuum.

Step-by-Step Solution

1
Classify waves based on their propagation requirements.
Waves are classified broadly into mechanical waves (which require a medium) and electromagnetic waves (which do not require a medium).
Understanding the fundamental distinction between mechanical and electromagnetic propagation.
2
Identify the nature of each given wave option.
Radio waves, infrared rays, and gamma rays are electromagnetic waves. Sound waves are mechanical waves.
Mechanical waves depend on the elastic interactions of physical particles to transmit energy.

Key Concept

Classification of waves into mechanical and electromagnetic based on medium requirement
Estimated Time:45s
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Topics

Production, Propagation, and Classification of Waves

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