Advertisements
Advertisements
प्रश्न
In what respect does waveforms of noise and a musical note differ. Draw diagrams to illustrate your answer.
उत्तर
The waveform of noise is irregular, discontinuous, and non-periodic while the waveform of a musical note is regular, continuous, and periodic.
These waveforms are shown in the figure given below:
APPEARS IN
संबंधित प्रश्न
Why are the ceilings of concert halls curved?
What is a bulb horn ? Name the principle on which a bulb horn works.
Explain how is the principle of echo used by
(a) The bat during its flight at night,
(b) The dolphin to locate small fish as its prey.
What do you mean by reflection of sound? State one condition for the reflection of a sound wave. Name a device in which reflection of sound wave is used.
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.
Why is an echo not heard when the distance between the source of sound and reflection body is less than 10 m?
Explain Reflection at curved surfaces.
