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
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
In which of the three media, air, water or iron, does sound travel the fastest at a particular temperature?
Describe an experiment to show that sound can travel in a solid.
Write the approximate speed of sound in water .
A boy fires a gun and another boy at a distance of 1020 m hears the sound of firing the gun 3 s after seeing its smoke. Find the speed of sound.
Calculate the speed of a sound wave whose frequency is 2 kHz and wavelength 65 cm.
The speeds of sound in four different media are given below. Which of the following is the most likely speed in m/s with which the two under water whales in a sea talk to each other when separated by a large distance?
Write the formula for speed of sound in a gas using Laplace correction.
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
A source of sound is travelling with a velocity 40 km/h towards an observer and emits a sound of frequency 2000 Hz. If the velocity of sound is 1220 km/h, then the apparent frequency heard by the observer is _____.
The velocity of sound by a tuning fork frequency of 480 Hz is 340 ms Its wavelength is ______.
