Advertisements
Advertisements
प्रश्न
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?
Advertisements
उत्तर
(i) Given, the Amplitude ratio, a1 : a2 = 2 : 3
∵ I α a2
∴ `"I"_1/"I"_2="a"_1^2/"a"_2^2=2^2/3^2=4/9`
⇒ I1 : I2 = 4 : 9
(ii) ∵ Frequency α Pitch
∴ Ratio of frequencies = 1 : 1
संबंधित प्रश्न
Shrillness of a sound is determined by the ______ of vibration.
An enemy plane is at a distance of 300 km from a radar. In how much time the radar will be able to detect the plane? Take velocity of radio waves as 3 x 108 ms-1
In which units is the loudness of sound measured?
Name the characteristic of sound related to its 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.
Name three characteristics of a musical sound.
- 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)?
Two waves of the same pitch have amplitudes in the ratio 1 : 3. What will be the ratio of their :
(i) intensities and
(ii) frequencies
Explain the following and illustrate your answer by drawing appropriate diagram:
Pitch
What is acoustics?
