General Knowledge - Physics - Discussion

Discussion :: Physics - Section 1 (Q.No.55)

55. 

Supersonic plane fly with the speed

[A]. less than the speed of sound
[B]. of sound
[C]. greater than the speed of sound
[D]. of light

Answer: Option C

Explanation:

No answer description available for this question.

Kavin said: (Mar 23, 2012)  
We know velocity of light is 3*10^8 m/sec. Sound velocity is 330 m/sec. There no possibility to travel in light speed only possible in sound velocity.

Swati said: (Jan 1, 2013)  
The speed of any object is greater than the speed of sound.

Fope said: (Jul 11, 2014)  
But a sonic boom is heard when a plane reaches the speed of sound, so shouldn't that be when it goes supersonic?

Dgh said: (Sep 19, 2016)  
Sound waves are classified as,

Infrasonic waves having a frequency below 20hz.

Audible waves having a frequency between 20hz to 20kHz.

Supersonics or ultrasonic waves having frequencies above 20kHz.

Thus considering these frequencies correct answer is C.

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