Advertisements
Advertisements
प्रश्न
Draw a diagram representing a wave of amplitude 4 cm and wavelength 2 m. If the frequency of the wave is 150 Hz, calculate its velocity.
Advertisements
उत्तर
Given: f = 150 Hz, λ = 2 cm
∴ V = f λ = 150 × 2 = 300 ms−1.
The diagram below represents the wave:
APPEARS IN
संबंधित प्रश्न
How is the frequency of a stretched string related to its length?
Define wave velocity term in relation to a wave.
The following diagram shows three ways in which the string of an instrument can vibrate.
(a) which of the diagram shows the principal note?
(b) which has the frequency four times that of the first?
(c) what is the ratio of the frequency of the vibration in (i) and (ii)?
Explain how the principle of echo is used by
The bat during its flight at
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.
Waves produced on the surface of the water are formed to move with a velocity of 24 ms−1. If the wavelength of these waves equals 20 cm. find the
(i) frequency (no. of waves produced per second)
(ii) the time period (i.e. the time required to produce one wave) for these waves.
Explain reflection at the boundary of a rarer medium.
The direction of the incident sound, the direction of reflected sound, and the normal are in different Planes.
