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NEST2026PhysicsElectromagnetic Waves

Among the following, the waves responsible for energy transfer in vacuum are

Options

  1. Asound waves.
  2. Bseismic waves.
  3. CSONAR waves.
  4. Dinfrared waves.

Correct answer

D. infrared waves.

Step-by-step solution

Mechanical waves such as sound waves, seismic waves, and SONAR waves require a material medium for their propagation and cannot travel through a vacuum. Infrared waves are electromagnetic waves. Electromagnetic waves do not require any material medium for their propagation and can easily travel through a vacuum, transferring energy. Therefore, infrared waves are responsible for energy transfer in vacuum. Answer: infrared waves.

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