Advertisements
Advertisements
Question
The speed of highly penetrating ultrasonic waves is :
Options
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
Advertisements
Solution
The speed of sound wave in air is independent of its frequency.
(d) Same as those of audible sound waves.
APPEARS IN
RELATED QUESTIONS
Two children are at opposite ends of an aluminium rod. One strikes the end of the rod with a stone. Find the ratio of times taken by the sound wave in air and in aluminium to reach the second child.
Fill in the blank.
Sound travels faster in ________ than in liquids.
Which term is used to denote a speed greater than the speed of sound?
A cricket ball is seen to hit the bat first and the sound of hitting is heard a little later. Why?
Calculate the speed of a sound wave whose frequency is 2 kHz and wavelength 65 cm.
Fill in the blanks with suitable words .
Wave speed in metres per second equals frequency in ............ multiplied by ..................... in ..................
Fill in the blank with suitable word :
The speed of sound in a solid is ............... than the speed of sound in air.
A man is kidnapped, blindfolded and imprisoned in a big room. How could the man tell if he was in : a village
Write the formula for speed of sound in a gas using Laplace correction.
The thunder of cloud is heard 9.8 seconds later than the flash of lightning. If the speed of sound in air is 330 ms–1, what will be the height of the cloud?
