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Distance between the observer and source

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1.	THE_APPARENT_FREQUENCY_IN_DOPPLER‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬•S_EFFECT_DOES_NOT_DEPEND_UPON?$#
A.	Speed of the observer
B.	Distance between the observer and source
C.	Speed of the source
D.	Frequency of the source
Answer» C. Speed of the source

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THE_APPARENT_FREQUENCY_IN_DOPPLER‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬•S_EFFECT_DOES_NOT_DEPEND_UPON?$#

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