# NEET Physics Waves Questions Solved

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Velocity of sound measured in hydrogen and oxygen gas at a given temperature will be in the ratio

(1) 1 : 4

(2) 4 : 1

(3) 2 : 1

(4) 1 : 1

(2) $v\propto \frac{1}{\sqrt{M}}⇒\frac{{v}_{{H}_{2}}}{{v}_{{O}_{2}}}=\sqrt{\frac{{M}_{{O}_{2}}}{{M}_{{H}_{2}}}}=\sqrt{\frac{32}{2}}⇒\frac{{v}_{{H}_{2}}}{{v}_{{O}_{2}}}=\frac{4}{1}$

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