Multiple Choice
Doppler effect: A stationary siren emits sound of frequency 1000 Hz and wavelength 0.343 m. An observer who is moving toward the siren will measure a frequency f and wavelength λ for this sound such that
A) f > 1000 Hz and λ > 0.343 m.
B) f > 1000 Hz and λ = 0.343 m.
C) f > 1000 Hz and λ < 0.343 m.
D) f = 1000 Hz and λ < 0.343 m.
Correct Answer:

Verified
Correct Answer:
Verified
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