PHYSICS MIDDLE SCHOOL

A trumpet creates a sound wave that has a wave speed of 350m/s and a wavelength of 0.8 m . What is the frequency of the sound wave

Answers

Answer 1
Answer:

Answer:

The frequency of sound wave created by trumpet is 437.5Hz

Explanation:

Given

the speed of sound wave = 350 ms^(-1)

the wavelength of sound wave = 0.8 m

the frequency of sound wave = ?

All the waves have same relationship among wavelength, frequency and speed, which is given by the equation:

v = fλ, where

v is speed of the wave

f is frequency of the wave

λ is wavelength of the wave

therefore frequency of sound wave is given by

f = v/λ

 = 350ms^(-1)/0.8m

 = 437.5s^(-1)

 = 437.5Hz (since 1 s^(-1) = 1 Hz (Hertz)

Hence the frequency of sound wave created by trumpet is 437.5Hz
Answer 2
Answer:

Answer:

The frequency of sound wave created by trumpet is 437.5Hz

Explanation:

Given

the speed of sound wave = 350 m

the wavelength of sound wave = 0.8 m

the frequency of sound wave = ?

All the waves have same relationship among wavelength, frequency and speed, which is given by the equation:

v = fλ, where

v is speed of the wave

f is frequency of the wave

λ is wavelength of the wave

therefore frequency of sound wave is given by

f = v/λ

= 350m/0.8m

= 437.5

= 437.5Hz (since 1  = 1 Hz (Hertz)

Hence the frequency of sound wave created by trumpet is 437.5Hz

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