Tone A has a frequency of 240 Hz. Of the foll | vedclass

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(D) Two tones are considered harmonious if their frequencies are in a simple integer ratio,which typically occurs when they are harmonics of the same

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$450$

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(D) Two tones are considered harmonious if their frequencies are in a simple integer ratio,which typically occurs when they are harmonics of the same fundamental frequency.The fundamental frequency of $240 Hz$ can be considered $120 Hz$ (since $240 = 2 	imes 120$).Let us check the given options against the harmonics of $120 Hz$:- $240 Hz = 2 	imes 120 Hz$ ($2^{nd}$ harmonic)- $360 Hz = 3 	imes 120 Hz$ ($3^{rd}$ harmonic)- $480 Hz = 4 	imes 120 Hz$ ($4^{th}$ harmonic)Since $450 Hz$ is not an integer multiple of $120 Hz$ $(450 / 120 = 3.75)$,it does not form a simple harmonic relationship with $240 Hz$. Therefore,$450 Hz$ will sound the least harmonious.

Tone $A$ has a frequency of $240 Hz$. Of the following tones,which one will sound least harmonious with $A$ (in $Hz$)?

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