Advertisements
Advertisements
Question
What is the SI unit of frequency?
Advertisements
Solution
S.I unit of frequency is hertz.
APPEARS IN
RELATED QUESTIONS
Guess which sound has a higher pitch: guitar or car horn?
Write the audible range of frequency for the normal human ear.
Draw a displacement-distance graph of a wave and mark on it, the amplitude of wave by the letter 'a' and wavelength of wave by the letter λ.
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 thin metal plate is placed against the teeth of cog wheel. Cog wheel is rotated at a speed of 120 rotations per minute and has 160 teeth. Calculate:
- frequency of node produced.
- speed of sound, if wavelength is 1.05 m.
- what will be the effect when the speed of cog wheel is doubled?
Can we produce sound in vacuum?
What causes sound in air?
Sound is a ______ wave and needs a material medium to travel.
Describe with diagram, how compressions and rarefactions are produced.
