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प्रश्न
Name the subjective property of light related to its wavelength.
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उत्तर
The subjective property of light related to its wavelength is colour.
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संबंधित प्रश्न
If the amplitude of vibration is large, sound is feeble.
The time period of a wave is 2 s. Its frequency is ..........
Name the characteristic of sound related to its frequency
Explain the following and illustrate your answer by drawing appropriate diagram:
Quality of a musical note.
How do you account for the fact that two strings can be used to give notes of the same pitch and loudness but of different quality?
The same musical note when played on a piano and when played on a flute sounds different.
The diagram below shows three ways in which the string of an instrument can vibrate.
(i) Which of the above diagrams shows the fundamental note?
(ii) Which has the frequency 4 times that of the fundamental?
(iii) State the ratio between the frequency of the first and second.
If ______ of sound is decreased, its loudness also decreases.
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
Give scientific reasons.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
