Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
- Interference of Sound Waves: When two waves of the same frequency, same wavelength, same velocity (nearly equal amplitude) moves in the same direction. Then their superimposition results in the interference.
- Due to interference, the resultant intensity of sound at that point is different from the sum of intensities due to each wave separately.
Interference is of two types:
- Constructive interference: It increases the effective intensity or amplitude of the sound wave.
- Destructive interference: It decreases the effective intensity or amplitude of the sound wave.
EXPLANATION:
Two waves
Then by the principle of superposition,
y = y1 + y2
∴ The phase difference between the two waves is
Resultant wave is
Hence option 2 is correct.
And
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