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Properties of Ultrasonic Sound

The speed of ...

Question

The speed of highly penetrating ultrasonic waves is :
(a) lower than those of audible sound waves
(b) higher than those of audible sound waves
(c) much higher than those of audible sound waves
(d) same as those of audible sound waves

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Solution

The speed of sound wave in air is independent of its frequency.
Ans: (d) Same as those of audible sound waves.

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In SONAR we use :

(a) ultrasonic waves

(b) infrasonic waves

(c) radio waves

(d) audible sound waves

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Properties of Ultrasonic Sound

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