In a resonance tube experiment ,a tuning fork resonates with an air column produces first resonating length of 12.5cm and second resonating length of 40cm . Then the end correction is
A. 1cm
B. 1.25cm
C. 3cm
D. 0.12cm

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1 Answers

Correct Answer - B
`e=(l_2-3l_1)/(2) = (40-37.5)/(2) = (2.5)/(2)`
`=1.25cm`

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