Physics · 2019
NEET 2019 · 20 May · Code G1 · Q139
A tuning fork with frequency 800 Hz produces resonance in a resonance column tube with upper end open and lower end closed by water surface.…
A tuning fork with frequency $\displaystyle 800$ Hz produces resonance in a resonance column tube with upper end open and lower end closed by water surface. Successive resonances are observed at lengths $\displaystyle 9.75$ cm, $\displaystyle 31.25$ cm and $\displaystyle 52.75$ cm. The speed of sound in air is,
Official answer
(3)
$\displaystyle 344$ m/s
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