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प्रश्न
Give a scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
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उत्तर
- In the past, individuals would place their ear to the rail to detect the arrival of a distant train, as they understood that sound travels more quickly through solids than through gases.
- Thus, putting their ear to the rails used to give them the idea of the arrival time of a train in advance.
संबंधित प्रश्न
The ratio of amplitude of two waves is 3:4. What is the ratio of their loudness?
What is an echo
What do you understand by the loudness of sound?
What is longitudinal wave?
Name three characteristics of a musical sound.
Name the factors which determine the quality of a note.
The same musical note when played on a piano and when played on a flute sounds different.
Name one main factor on which each character such as intensity, pitch, and quality of musical sound depends.
What is meant by the ‘pitch’ of a note? Does it depend on the loudness or ‘quality’ of the ‘note’? How is pitch ‘related’ with frequency?
Two waves of the same pitch have their amplitudes in the ratio 2 : 3.
(i) What will be the ratio of their loudness?
(ii) What will be the ratio of their frequencies?
