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Questions and Answers
What happens when waves from two coherent sources arrive in phase at the same place?
What happens when waves from two coherent sources arrive in phase at the same place?
- Constructive interference occurs, resulting in a louder sound (correct)
- The amplitude of the waves decreases
- The waves cancel each other out completely
- Destructive interference occurs, resulting in a quieter sound
What is the outcome when waves from two coherent sources arrive in anti-phase at the same place?
What is the outcome when waves from two coherent sources arrive in anti-phase at the same place?
- Destructive interference occurs, resulting in a quieter sound (correct)
- Constructive interference occurs, resulting in a louder sound
- The amplitude of the waves increases
- The waves cancel each other out completely
What is the principle of superposition in the context of wave interference?
What is the principle of superposition in the context of wave interference?
- When waves from two sources arrive at the same place, they add together (correct)
- When waves from two sources have different amplitudes
- When waves from two sources cancel each other out
- When waves from two sources have different wavelengths
What characterizes coherent sources in the context of wave interference?
What characterizes coherent sources in the context of wave interference?
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What is the effect of waves arriving in anti-phase from two coherent sources?
What is the effect of waves arriving in anti-phase from two coherent sources?
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Study Notes
Wave Interference
- When waves from two coherent sources arrive in phase at the same place, they reinforce each other, resulting in constructive interference, and the amplitude of the resulting wave is greater than that of the individual waves.
Coherent Sources
- Coherent sources are characterized as sources that emit waves of the same frequency and are in phase with each other.
Superposition Principle
- The principle of superposition states that when two or more waves overlap in space and time, the resulting wave is the sum of the individual waves.
Anti-Phase Arrival
- When waves from two coherent sources arrive in anti-phase at the same place, they cancel each other out, resulting in destructive interference, and the amplitude of the resulting wave is zero or nearly zero.
- The effect of waves arriving in anti-phase from two coherent sources is destructive interference, resulting in a reduction or elimination of the wave amplitude.
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