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If `l_1 and l_2` are the lengths of air column for two air column for two consecutive resonance position when a turning fork of frequency f is sounded in a resonance tube, then end correction is :A. `((l_2-3l_1))/2`B. `((l_2+3l_1))/2`C. `((l_2+l_1))/2`D. `((3l_2-l_1))/4` |
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Answer» `V/(4(l_1+e))=f, (3V)/(4(l_2+e))=f` `V/(4f)=l_1+e` `(3V)/(4f)=l_2+e` `(2V)/(4f)=l_2-l_1=V=2f(l_2-l_1)` `e=(2f(l_2-l_1))/(4f)-l_1=(2l_2-2l_1-4l_1)/4=(2(l_2-3l_1))/4` |
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