Question

Choose the correct option and explain:

The speed of sound in air is

(A) exactly the same as the speed of light in air.
(B) greater than the speed of light in air.
(C) less than the speed of light in air.
(D) Non of these​

Answer 1

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(C) less than the speed of light in air.

The speed of light in air is about 300 million metres per second and the speed of sound is typically about 340 per second.

Answer 2

Question :

Choose the correct option and explain:

The speed of sound in air is

(A) exactly the same as the speed of light in air.

(B) greater than the speed of light in air.

(C) less than the speed of light in air.

(D) None of these

Answer :

Option C) less than the speed of light in air is correct.

• Speed of light in air is 3 × 10^8 m/s.

• Whereas speed of sound is air is comparatively much lower than that of sound , it is just 340 m/s.

• Light takes 1 second to travel 186 thousands miles in air and sound takes 5 seconds to travel 1 mile in air.

• The speed of light in air is the highest speed of any other thing in the universe.

• The speed of light in a vacuum is 299,792,458 meters per second.

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