The bulk modulus and tbe density of water are greater than those of air. With this much of information, we can say that velocity of sound in air
The bulk modulus and tbe density of water are greater than those of air. With this much of information, we can say that velocity of sound in air
(a) is larger than its value in water
(b) is smaller than its value in water
(c) is equal to its value in water
(d) cannot be compared with its value in water.
1 Answers
(d) cannot be compared with its value in water.
EXPLANATION:
The velocity of sound in a fluid is given as V =√(B/ρ) where B is the bulk modulus and ρ is the density of the fluid.
It is clear from the relation that if B increases V also increases but when ρ increases V decreases. Since B and ρ are both greater than air for water, B increases V but ρ decreases V for water. So until the ratio, B/ρ is available for both the water and air the velocity of sound in these mediums cannot be compared. Hence the option (d)