For one closed pipe and one open pipe, frequencies of their first harmonics are same. Find ratio of their lengths.

For one closed pipe and one open pipe, frequencies of their first harm

1.	For one closed pipe and one open pipe, frequencies of their first harmonics are same. Find ratio of their lengths.
Answer» `1:2` `2:3` `3:4` `4:5` Solution :For closed, pipe, frequency of first HARMONIC, `F._(a) = (v)/(2L)` `therefore (f _(1))/(f._(1)) = (v)/(4L) xx (2L)/(v) = 1/2`