Sound WavesHard
Question
The wave equation is y where t, x and y are in second, of the metre and centimetre respectively. The speed of the wave is
Options
A.400m/s
B.100m/s
C.200m/s
D.50m/s
Solution
Given equation y = 03.0sin (314t - 1.57x)Comparing it with standard equation of wave,
y = a sin (ωt - kx)
ω = 314; k = 1.57
v =
⇒ v =
= 200m/ sec
y = a sin (ωt - kx)
ω = 314; k = 1.57
v =
⇒ v =
= 200m/ secCreate a free account to view solution
View Solution FreeMore Sound Waves Questions
A firecracker exploding on the surface of a lake is heard as two sounds a time interval t apart by a man on a boat close...One end of a string of length L is tied to the ceiling of lift accelerating upwards with an accelerating 2g. The other e...A wave travelling along the x-axis is described by the equation y(x, t) = 0.005 cos (αx - βt). If the waveleng...A person speaking normally produces a sound intensity of 40 dB at a distance of 1m. If the threshold intensity for reaso...The velocities of sound at the same temprature in two monatomic gases of densities ρ1 and ρ2 are v1 and v2 res...