Two stationary sources exist, each emitting waves of wavelength λ. If an observer moves from one source to the other with velocity u, then the number of beats heard by him is equal to:
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. | \(3\) | 2. | \(360\) |
3. | \(180\) | 4. | \(60\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology