Two open pipes with lengths 25 cm and 25.5 cm produce 10 beat/second when resonated in fundamental mode. Find speed of sound in them.

Two open pipes with lengths 25 cm and 25.5 cm produce 10 beat/second w

1.	Two open pipes with lengths 25 cm and 25.5 cm produce 10 beat/second when resonated in fundamental mode. Find speed of sound in them.
Answer» `225m//s` `255m//s` `350 m//s` NONE of these SOLUTION :Here `f _(1) -f ._(1) =10` `THEREFORE (v)/( 2L ) - (v)/(2L.) = 10` `therefore (v)/(2) [ (L.-L)/(LL.)]=10` `therefore v= 20 XX (LL.)/(L.-L)` `= 20 xx [ ((25.5 ) (25))/( (25.5) - (25))]` `therefore v = 255 m//s`