NEET 2016 Physics question
An air column, closed at one end and open at the other, resonates with a tuning fork when the smallest length of the column is 50 cm. The next larger length of the column resonating with the same tuning fork is:
Answer: (3)
Solution
In a pipe closed at one end, resonance occurs when the length is an odd multiple of a quarter wavelength: The smallest length is $ = 50\
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