Correct Answer - A::C
(a,c) The wavelength possible in an air column in a pipe which has one closed end is
`lambda = (4l)/((2n + 1))` So, `c = vlambda`
`300 = 264 xx (4l)/(2n + 1)`
`v = 264 Hz` as it is in resonnance with a vibrating tuning fork of frequency `264 Hz`.
`l = (330 xx (2n +1))/(264 xx 4)`
For `n = 1`, `l = 0.3125m = 31.25cm`
For `n = 2`, `l = 0.9375m = 93.75cm`