Question:
Among the following, the waves responsible for energy transfer in vacuum are
Among the following, the waves responsible for energy transfer in vacuum are
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Remember that all forms of light (radio, microwave, infrared, visible, ultraviolet, X-rays, gamma rays) are electromagnetic waves and can travel through the vacuum of space.
Updated On: Jun 16, 2026
- infrared waves.
- sound waves.
- SONAR waves.
- seismic waves.
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Question:
The question asks to identify which of the listed wave types can propagate and transfer energy through a vacuum.
Step 2: Key Formula or Approach:
- Waves are broadly classified into mechanical waves and electromagnetic waves.
- Mechanical waves require a material medium (solid, liquid, or gas) to propagate because they rely on elastic deformation.
- Electromagnetic waves consist of oscillating electric and magnetic fields and do not require a material medium, allowing them to propagate through a vacuum.
Step 3: Detailed Explanation:
• Infrared waves are a type of electromagnetic radiation, lying between microwaves and visible light in the electromagnetic spectrum.
Since they are electromagnetic, they can travel through a vacuum and transfer thermal energy.
• Sound waves are mechanical longitudinal waves that propagate through the compression and rarefaction of a physical medium. They cannot travel through a vacuum.
• SONAR (Sound Navigation and Ranging) uses acoustic (sound) waves to navigate and detect objects, typically underwater. Since these are sound waves, they require a physical medium.
• Seismic waves are waves of energy that travel through the Earth's layers (resulting from earthquakes or explosions). They are mechanical waves and require a solid or liquid medium to propagate.
Step 4: Final Answer:
The waves responsible for energy transfer in a vacuum are infrared waves.
The question asks to identify which of the listed wave types can propagate and transfer energy through a vacuum.
Step 2: Key Formula or Approach:
- Waves are broadly classified into mechanical waves and electromagnetic waves.
- Mechanical waves require a material medium (solid, liquid, or gas) to propagate because they rely on elastic deformation.
- Electromagnetic waves consist of oscillating electric and magnetic fields and do not require a material medium, allowing them to propagate through a vacuum.
Step 3: Detailed Explanation:
• Infrared waves are a type of electromagnetic radiation, lying between microwaves and visible light in the electromagnetic spectrum.
Since they are electromagnetic, they can travel through a vacuum and transfer thermal energy.
• Sound waves are mechanical longitudinal waves that propagate through the compression and rarefaction of a physical medium. They cannot travel through a vacuum.
• SONAR (Sound Navigation and Ranging) uses acoustic (sound) waves to navigate and detect objects, typically underwater. Since these are sound waves, they require a physical medium.
• Seismic waves are waves of energy that travel through the Earth's layers (resulting from earthquakes or explosions). They are mechanical waves and require a solid or liquid medium to propagate.
Step 4: Final Answer:
The waves responsible for energy transfer in a vacuum are infrared waves.
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