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A stationary siren emits sound of frequency 1000 Hz and wavelength 0.5 m. An observer who is moving toward the siren will measure a frequency

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A stationary siren emits sound of frequency 1000 Hz and wavelength 0.5 m. An observer who is moving toward the siren will measure a frequency f and wavelength ^ for this sound such that Of > 1000 Hz and A = 0.5 m. f = 1000 Hz and A = 0.5 m X Of = 1000 Hz and A 1000 Hz and A > 0.5 m. f > 1000 Hz and A

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