Question

A stereo speaker produces a pure "E" tone, with a frequency of 329.6 Hz. What is the period of the sound wave produced by the speaker? period: What is the wavelength of the same sound wave as it enters some water, where it has a speed of about 1480 m/s? wavelength entering water: What is the wavelength of this sound wave as it travels through air with a speed of about 341 m/s? wavelength in air

Answer 1

Given a stereo speaker produces a t tone wat I and frequency (2) = 329•6H3 And we have to find period of this sound ware.....! Period of a ware is the time takin for completion of one complete cycle of vibration to pass a given point. It is denoted by s a ma donna change prohi Jo 1 in i ett gang i ditt i Perioda 1 329.6 I Period = 3.03 ms T 13.03 X 10-3X Now, we are given speed of sound in water and V- 1480 mis And we have to find the wavelength entering water wavelength and speed are related by Wavele a frequency Bo, frequency = 329.0 Hz so 92V 1480 - 4.49 m 329.6 14.49 m 7 water

Now we have to find wavelength of sound wave as it travels through air: A frequency does not change when a wave travels from one medium to another. And also given frequency = 329.6 Hz Speed of sound waves in air = 341 m/s so Wavelength in air = speed frequency arr = :- 341 329.6 Pair = 1.03 m