Question

Which of the following are mechanical waves?
(A) Sound
(C) Radio
(B) Light
(D) All of the above​

Answer 1

Answer:

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A mechanical wave requires an initial energy input. ... Some of the most common examples of mechanical waves are water waves, sound waves, and seismic waves. There are three types of mechanical waves: transverse waves, longitudinal waves, and surface waves.

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Answer 2

Answer:

Sound is a mechanical wave.

Explanation:

Mechanical Waves:

• A mechanical wave is one whose energy cannot be transmitted through a vacuum.

• In order to move their energy from one place to another, mechanical waves need a medium.
• A sound wave is an example of a mechanical wave.
• Sound waves are incapable of traveling through a vacuum.
• A sound wave traveling through the air is a classic example of a longitudinal wave.

Other examples:

• Slinky waves, Water waves, Stadium waves, and Jump rope waves are the other examples of mechanical waves each requires some medium in order to exist.
• Slinky waves require the coils of the slinky.
• Water waves require water.
• Stadium waves require fans in a stadium.
• Jump rope waves require a jump rope.

Know more about Sound waves:

https://brainly.in/question/75573?referrer=searchResults