A resonance tube is old and has jagged end. It is still used in the laboratory to determine. Velocity of sound in air. A tuning fork of frequency `512Hz` produces first resonance when the tube is filled with wtaer to a mark 11 cm below a reference mark, near the open end of the tube. the experiment is repeated with another fork of frequency `256Hz` which produces first resonance when water reaches a mark `27 cm` below the reference mark. the velocity of sound in air, obtained in the experiment, is close to :
A. `322ms^(-1)`
B. `341ms^(-1)`
C. `335ms^(-1)`
D. `328ms^(-1)`
