Advertisements
Advertisements
प्रश्न
A wave passes from one medium to another medium. Mention one property of the wave out of speed, frequency or wavelength which changes.
उत्तर
Wavelength (or speed) of the wave changes, when it passes from one medium to another medium.
APPEARS IN
संबंधित प्रश्न
Displacement distance graph of two sound waves A and B, travelling in a medium, are as shown in the diagram below.
Study the two sound waves and compare their:
1) Amplitudes
2) Wavelengths
Define amplitude term in relation to a wave.
Define wave velocity term in relation to a wave.
State two differences between the light and sound waves.
What is the condition necessary for an echo to be heard distinctly?
How do bats avoid obstacles in their way, when in flight?
Explain how the principle of echo is used by
The bat during its flight at
State two factors on which the natural frequency of a body depends.
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 |
