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संबंधित प्रश्न
Write true or false for a given statement.
The frequency is measured in hertz.
Calculate the wavelength of a sound wave whose frequency is 220 Hz and speed is 440 m/s in a given medium.
What type of wave is represented :
(a) by density-distance graph?
(b) by displacement-distance graph?
Before playing the orchestra in a musical concert, a sitarist tries to adjust the tension and pluck the strings suitably. By doing so he is adjusting :
Distinguish between compression and rarefaction.
Describe a simple experiment to determine the speed of sound in air. What approximation is made in the method described by you?
A source of wave produces 40 crests and 40 troughs in 0.4 s. What is the frequency of the wave?
An observer X is on an island 5500 m from a vertical cliff on the shore. A ship Y is anchored between the island and the Cliff. A blast on the ship’s siren is heard twice by X, the interval being 5s. [Velocity of sound = 330 ms−1]
(i) Find the distance of the ship from the island.
(i) Find the distance of the cliff from the ship.
A key of a mechanical piano struck gently and then struck again but much harder this time. In the second case
Two sound waves X and Y have the same amplitude and the same wave pattern but their frequencies are 60 Hz and 120 Hz respectively, then ______.
