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:
संबंधित प्रश्न
Define frequency term in relation to a wave.
Define wavelength term in relation to a wave.
Name the waves which are used in sonar to find the depth of a sea. Give one reason for their use.
What is a soundboard ? Explain the working of a soundboard with the help of a labelled diagram.
Write the approximate value of the speed of sound in water.
Name the type of waves that are used for sound ranging. Why are radio waves not audible to us?
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.
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.
Explain why, the ceilings of concert halls are curved.
