Advertisements
Advertisements
Question
Explain why you can predict the arrival of a train by placing your ear on the rails without seeing it.
Advertisements
Solution
The sound produced by the moving wheels of train travels much faster through the track than through the air. Therefore they hear through the track much before it is heard through the – air.
APPEARS IN
RELATED QUESTIONS
Fill in the blank.
Sound is produced when a body ______.
Which of the following cannot transmit sound? Water, Vacuum, Aluminium, Oxygen gas
A tuning fork has a number 256 marked on it. What does this number signify?
What will be the change in the wavelength of a sound wave in air if its frequency is doubled?
How is sound produced? Explain with the help of an example.
Draw the sketches of two waves A and B such that wave A has twice the wavelength and half the amplitude of wave B.
A musical instrument is producing a continuous note. This note cannot be heard by a person having a normal hearing rang. This note must then be passing through.
In the sound wave produced by a vibrating turning fork shown in the diagram, half the wavelength is represented by :
Sound is produced by ______.
Sound travels in the air if
