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प्रश्न
Name one property of waves that do not change when the wave passes from one medium to another.
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उत्तर
The frequency of the waves does not change when the waves travel from one medium to another.
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संबंधित प्रश्न
Loudness is determined by the __________ of vibration.
A pendulum oscillates 40 times in 4 seconds. Find its time period and frequency.
Two identical guitars are played by two persons to give notes of the same loudness and pitch. Will they differ in quality? Give reason for your answer.
How is the pitch of sound in a guitar changed if (a) thin wire is used, (b) wire under less tension is used?
- Which of the following quality determines the loudness of a sound wave?
- wavelength
- frequency and
- amplitude
- How is loudness related to the quantity mentioned above in part (a)?
Name the unit in which loudness of sound is measured.
Name musical instrument, one in each case, which produces its notes by using the following. In each case state the method used to produce notes of different pitches and loudness.
(a) A vibrating string.
(b) A vibrating column air.
(c) Vibration of any other body.
Name the subjective property of light related to its wavelength.
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?
