Question 4 a. Write you understanding about coherent waves. A loud speaker hanging on a long...

Transcribed Image Text:

Question 4 a. Write you understanding about coherent waves. A loud speaker hanging on a long rod radiates sound waves uniformly in all directions. At a distance of 15.0 m from the speaker, the sound intensity is 0.25 W/m². At what distance is the intensity 0.1 W/m²? b. The equation of a plane sound wave is, y(x, t) = 6.0 x 10-6 sin(5.7x - 1500t). Find the frequency, the wavelength and the velocity of the wave. Compare the wavelength with the amplitude of the oscillations and the wave velocity with the amplitude of the velocity of the oscillations. What is the phase shift between the oscillations of two points 30.0 cm apart in the direction of the sound wave? Question 4 a. Write you understanding about coherent waves. A loud speaker hanging on a long rod radiates sound waves uniformly in all directions. At a distance of 15.0 m from the speaker, the sound intensity is 0.25 W/m². At what distance is the intensity 0.1 W/m²? b. The equation of a plane sound wave is, y(x, t) = 6.0 x 10-6 sin(5.7x - 1500t). Find the frequency, the wavelength and the velocity of the wave. Compare the wavelength with the amplitude of the oscillations and the wave velocity with the amplitude of the velocity of the oscillations. What is the phase shift between the oscillations of two points 30.0 cm apart in the direction of the sound wave?

Answer rating: 100% (QA)

Solution a Given that Intensity of sound wave I 1 025Wm 2 Distance travelled by sound wave d 1 150m ... View the full answer