Question

123.The velocity of sound in hydrogen at zero degree celsius is 1200 metre per second .when some amount of oxygen is mixed with hydrogen the velocity decreases to 500 m per second .then the ratio of hydrogen to oxygen i.e.(x/y) by volume in this mixture, given that the density of oxygen is 16 times that of hydrogen 1)x/y=2.2. 2)x/y=4. 3)x/y=3.2. 4)x/y=1.2

Answer 1