Discussion :: Physics - Section 1 (Q.No.55)
Supersonic plane fly with the speed
Answer: Option C
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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