378601
Descrição
Mapa Mental por leonie.examtime, atualizado more than 1 year ago
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Criado por leonie.examtime
aproximadamente 11 anos atrás
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The Doppler Effect
- Named after Austrian physicist Christian Doppler
- Proposed it in 1842
- Proposed it in 1842
- Apparent change in frequency of an object
- Appears higher when approaching
- Appears lower when moving away
- Appears lower when moving away
- Appears higher when approaching
- Examples
- Siren from an ambulance
- Sound from a passing race car
- Siren from an ambulance
- Object moving towards stationary observer
- Apparent frequency - f'
- f'=\(\frac{v}{v-vs}\)f
- f'=\(\frac{v}{v-vs}\)f
- Apparent frequency - f'
- Object moving away from stationary observer
- Apparent frequency - f'
- f'=\(\frac{v}{v+vs}\)
- f'=\(\frac{v}{v+vs}\)
- Apparent frequency - f'
- v = speed of wave
- vs = velocity of source
- f = frequency of wave
- f = frequency of wave
- vs = velocity of source
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