When a source moves away from a stationary observer, it was observed that the fr

Question

When a source moves away from a stationary observer, it was observed that the frequency received by the observer is lower than the one emitted by the source. This is because The observed wavelength of the sound waves is longer when the source moves away from the observer. The observed wavelength of the sound waves is shorter when the source moves away from the observer. The observed speed of the sound waves is higher when the source moves away from the observer. The observed speed of the sound waves is lower when the source moves away from the observer. None of the above. When a source moves towards a stationary observer, it was observed that the frequency received by the observer is higher than the one emitted by the source. This is because The observed wavelength of the sound waves is longer when the source moves towards the observer. The observed wavelength of the sound waves is shorter when the source moves towards the observer. The observed speed of the sound waves is higher when the source moves towards the observer. The observed speed of the sound waves is lower when the source moves towards the observer. None of the above. When an observer moves away from a stationary source, it was observed that the frequency received by the observer is lower than the one emitted by the source. This is because The observed wavelength of the sound waves is longer when the observer moves away from the source. The observed wavelength of the sound waves is shorter when the observer moves away from the source. The observed speed of the sound waves is higher when the observer moves away from the source. The observed speed of the sound waves is lower when the observer moves away from the source. None of the above. When an observer moves towards a stationary source, it was observed that the frequency received by the observer is higher than the one emitted by the source. This is because The observed speed of the sound waves is higher when the observer moves towards the source. The observed speed of the sound waves is lower when the observer moves towards the source. The observed wavelength of the sound waves is longer when the observer moves towards the source. The observed wavelength of the sound waves is shorter when the observer moves towards the source. None of the above.

Explanation / Answer

1. a)

2.()b

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