Advertisements
Advertisements
प्रश्न
Point out the waves from the given list, i.e., light, sound, radio waves, ultrasonic waves, and thermal radiation, the energy is propagated by mechanical waves.
Advertisements
उत्तर
The energy, in sound and ultrasonic waves, is propagated by mechanical waves.
संबंधित प्रश्न
The human ear can detect continuous sounds in the frequency range from 20 Hz to 20,000 Hz. Assuming that the speed of sound in air is 330 m s−1 for all frequencies, calculate the wavelengths corresponding to the given extreme frequencies of the audible range.
Name the characteristic of sound in relation to its waveform.
State the use of echo by a bat, dolphin and fisherman.
Name two sound absorbing materials (or objects) which can make our big room less echoey.
What is a bulb horn ? Name the principle on which a bulb horn works.
Write the approximate value of the speed of sound in air.
Explain Reflection at curved surfaces.
The direction of the incident sound, the direction of reflected sound, and the normal are in different Planes.
