true or false: destructive interference is the result of superposition of waves in phase.

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Answer 1

False. Destructive interference is not the result of the superposition of waves in phase. Superposition is a term used to describe the phenomenon that occurs when two waves meet and combine to form a new wave.

The waveforms add together to create the new waveform, which has characteristics that are determined by the properties of the original waves.What is destructive interference?When waves meet and their waveforms are out of phase, destructive interference occurs. The amplitude of the resulting waveform is decreased, and the resulting waveform has a different shape than either of the original waveforms. Destructive interference, also known as out-of-phase interference, occurs when two waves meet and cancel each other out. When the waves are in phase, they combine to form a larger waveform with greater amplitude than either of the original waveforms. This is known as constructive interference.To conclude, destructive interference is not the result of the superposition of waves in phase. It occurs when two waves are out of phase and combine to create a new waveform that has a smaller amplitude than either of the original waveforms.

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Suppose that a sound source is emitting waves uniformly in all directions. If you move to a point twice as far away from the course, the frequency of the sound will be...?
The answer is unchanged. Can someone please show this through equations or explain why it remains unchanged? Don't just say doppler effect, please :)

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If λ doubles, the frequency must remain constant, and this is why the frequency of the sound will be unchanged when you move twice as far away from the source.

What is Doppler Effect?

The Doppler Effect is an alteration in the apparent frequency of sound caused by the motion of the source, the observer, or both. The Doppler Effect may be used to calculate the relative speeds of the source and observer or to estimate the frequency of sound waves from a distant source, such as a star. The Doppler Effect is referred to as the shift in the frequency of the sound. Mathematically, this shift in frequency is referred to as the Doppler shift. Doppler shift in sound

The Doppler shift in sound may be computed using the following equation:

fD= v/c × f0

where v is the relative velocity of the observer and the source c is the velocity of sound waves in a given mediumf0 is the frequency of the source f D is the frequency observed Suppose that a sound source is emitting waves uniformly in all directions.

If we use the formula v = λ f

to calculate the frequency of sound, we get the following formula

:f = v/λ

Therefore, if λ doubles, the frequency must remain constant, and this is why the frequency of the sound will be unchanged when you move twice as far away from the source.

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