Advertisements
Advertisements
प्रश्न
What are mechanical waves?
Advertisements
उत्तर
Mechanical waves are those that result from the mutual exchange of kinetic and potential energy between mediums of particle vibrations.
APPEARS IN
संबंधित प्रश्न
Name the characteristic of sound in relation to its waveform
Define frequency term in relation to a wave.
A wave passes from one medium to another medium. Mention one property of the wave out of speed, frequency or wavelength which changes.
Explain how the principle of echo is used by
The bat during its flight at
Explain how the principle of echo is used by
The dolphin to locate small fish as its prey
A sound wavelength of 0.332 m has a time period of 10−3 s. If the time period is decreased to 10−4 s, calculate the wavelength and frequency of the new wave.
A sound wave whose frequency is 5000 Hz travels in air and then hits the water surface. The ratio of its wavelengths in water and air is ______.
Write short notes on reflection of sound waves from plane and curved surfaces.
Match the following:
| 1. | Stethoscope | a. | Repeated reflections |
| 2. | Echogram | b. | Multiple reflections |
| 3. | SONAR | c. | Ultrasonic waves |
| 4. | Reverberation | d. | Speed of underwater objects |
