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प्रश्न
The speed of highly penetrating ultrasonic waves is :
विकल्प
lower than those of audible sound waves
higher than those of audible sound waves
much higher than those of audible sound waves
same as those of audible sound waves
उत्तर
The speed of sound wave in air is independent of its frequency.
(d) Same as those of audible sound waves.
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संबंधित प्रश्न
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Numerical problems:
A Sound wave travels at a speed of 344 ms-1. If the wavelength is 1.5 cm, what is the frequency of the Wave? Will it be audible?
