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Define Mach number...

Define Mach number

A

It is the ratio of the stress to the strain

B

It is the ratio of the strain to stress

C

It is the ratio of the velocity of an object to the velocity of sound

D

It is the ratio of the velocity of sound to the velocity of an object

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The correct Answer is:
C
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CP SINGH-SOUND WAVES-Exercises
  1. A man is standing on a railway platform listening to the whistle of an...

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  2. A car is moving with a velocity of 5 m//s towards huge wall. The drive...

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  3. A whistle revolves in a circle with an angular speed of 20 rad//sec us...

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  4. A police car moving at 22m//s, chases motorcyclist. The police man so...

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  5. A train moves towards a stationary observer with speed 34 m//s. The tr...

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  6. A siren placed at a railway platform is emitting sound of frequency 5 ...

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  7. A racing car moving towards a cliff, sounds its horn. The driver obser...

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  8. A vehicle , with a horn of frequency n is moving with a velocity of 30...

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  9. Two cars are moving on two perpendicular road towards a crossing with ...

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  10. A band playing music at a frequency f is moving towards a wall at a sp...

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  11. A sound wave of frequency f travels horizontally to the right. It is r...

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  12. A motor cycle starts from rest and accelerates along a straight path a...

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  13. A star is moving away from the earth with a velocity of 100 km//s. If ...

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  14. The apparent wavelength of the light from a star, moving away from the...

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  15. The frequency of a radar is 780 MHz. After getting reflected from an a...

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  16. Define Mach number

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  17. The musical interval between two tones of frequencies 320 Hz and 240 H...

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  18. The time of reverberation of a room A is one second. What will be the ...

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  19. If T is the reverberation time of an auditorium of volume V then

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  20. An earhquake generates both transverse (S) and logitudinal (P) sound w...

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