Advertisements
Advertisements
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
Advertisements
उत्तर
The speed of sound wave in air is independent of its frequency.
(d) Same as those of audible sound waves.
APPEARS IN
संबंधित प्रश्न
In which of the three media, air, water or iron, does sound travel the fastest at a particular temperature?
Write the approximate speed of sound in air.
What name is given to those aircrafts which fly at speeds 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?
Fill in the blanks with suitable words .
Wave speed in metres per second equals frequency in ............ multiplied by ..................... in ..................
Velocity of sound in a gaseous medium is 330 ms–1. If the pressure is increased by 4 times without causing a change in the temperature, the velocity of sound in the gas is
An ultrasonic wave is sent from a ship towards the bottom of the sea. It is found that the time interval between the transmission and reception of the wave is 1.6 seconds. What is the depth of the sea, if the velocity of sound in the seawater is 1400 ms–1?
Establish the relationship between the speed of sound, its wavelength and frequency. If the velocity of sound in air is 340 m s–1, calculate
(i) wavelength when the frequency is 256 Hz.
(ii) frequency when the wavelength is 0.85 m
When temperature increases the speed of sound ______.
The speed of sound in a gaseous medium depends on the nature of the gas.
