In an organ pipe, if a person blows it fast then Q what change will occur in sound waves? (i) Speed (ii) Amplitude (iii) Frequency (iv) Intensity
Everyday Science / Physics — Multiple-choice practice
- A. I only
- B. II and IV
- C. None of these
- D. I and II
Correct answer
II and IV
Explanation
Explanation Amplitude ↑: More air energy → greater displacement of molecules. Intensity ↑: Higher amplitude → louder sound (more energy).
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