NEET2017Physics-Waves
NEET 2017 Physics Sound Waves MCQ Question
Type: MCQ-conceptual-Medium-Class 11
The two nearest harmonics of a tube closed at one end and open at other end are 220 Hz and 260 Hz. What is the fundamental frequency of the system?
A
10 Hz
B
20 Hz
C
30 Hz
D
40 Hz
Correct Answer
Option B
Detailed Explanation
For a tube closed at one end, the harmonics are odd multiples of the fundamental frequency. The difference between consecutive harmonics is twice the fundamental frequency.
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