Advertisements
Advertisements
प्रश्न
How are the wave velocity V, frequency f and wavelength λ of a wave related? Derive the relationship.
Advertisements
उत्तर
Let the velocity of a wave be V, time period T, frequency ν and wavelength λ. By the definition of wavelength,
Wavelength = Distance travelled by the wave in one time period i.e., in T second
Or, wavelength = Wave velocity × Time period
Or, λ = V × T
Or, λ = V × 1/ ν ...[As, T = 1/]
Therefore, V = ν λ
Therefore, Wave velocity = Frequency × wavelength
APPEARS IN
संबंधित प्रश्न
| Column A | Column B |
| (a) Vibrations cause | (1) absorb sound |
| (b) A shriller sound is | (2) second |
| (c) Unit of frequency | (3) sound |
| (d) Unit of time period | (4) of high pitch |
| (e) Curtains | (5) hertz |
Differentiate between a high pitch sound and a low pitch sound.
You recognize your friend by hearing his voice on a telephone. Explain.
A musician recognizes the musical instrument by hearing the sound produced by it, even without seeing the instrument. Which characteristic of sound makes this possible ?
'Note' is a sound :
A sound wave of wavelength 1/3 m has a frequency 996 Hz. Keeping the medium same, if frequency changes to 1328 Hz. Calculate
- velcoity of sound
- new wavelength.
What is the value of sound of room temperature?
The elastic property of medium is a factor of ______ medium.
Give scientific reasons.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
