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Problem: An unfingered guitar string is 0.73 m long and is tuned to play E above middle C (330 Hz). The finger is placed 0.242 m from the end of this string to play B above middle C  (494 Hz).What are the (a) frequency and (b) wavelength of the sound wave produced in air at 20°C

FREE Expert Solution

Speed of sound in the air:

v(331+0.60T)m/s

Wavelength:

λ=vf

(a)

At 20°C, the frequency of sound will not change. 

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Problem Details

An unfingered guitar string is 0.73 m long and is tuned to play E above middle C (330 Hz). The finger is placed 0.242 m from the end of this string to play B above middle C  (494 Hz).
What are the 

(a) frequency and 

(b) wavelength of the sound wave produced in air at 20°C

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