If vm is the velocity of sound in moist air, vd is the velocity of sound in dry air, under identical conditions of pressure and temperature
Easy
Download our app for free and get started
(a)The density of moist air (i.e. air mixed with water vapours) is less than the density of dry air
Hence from $v = \sqrt {\frac{{\gamma P}}{\rho }} $ ==> ${v_{moist\,air}} > {v_{dry\,air}}$
Hence from $v = \sqrt {\frac{{\gamma P}}{\rho }} $ ==> ${v_{moist\,air}} > {v_{dry\,air}}$
Download our appand get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
Similar Questions
- 1View SolutionMechanical wave (sound wave) in a gas is
- 2The path difference between the two waves ${y_1} = {a_1}\sin \,\left( {\omega t - \frac{{2\pi x}}{\lambda }} \right)$ and ${y_2} = {a_2}\cos \,\left( {\omega t - \frac{{2\pi x}}{\lambda } + \phi } \right)$ isView Solution
- 3Wave has simple harmonic motion whose period is $4\; sec$ while another wave which also possesses simple harmonic motion has its period $3\; sec$. If both are combined, then the resultant wave will have the period equal to ....... $sec$View Solution
- 4A string vibrates according to the equation $y = 5\sin \,\left( {\frac{{2\pi x}}{3}} \right)\,\,\cos \,20\,\pi t$, where $x$ and $y$ are in $cm$ and $t$ in sec. The distance between two adjacent nodes is .... $cm$View Solution
- 5View SolutionWhich of the following do not require medium for transmission
- 6A steel rod $100 \,cm$ long is clamped at its middle. The fundamental frequency of longitudinal vibrations of the rod are given to be $2.53\,kHz$. What is the speed of sound in steel ..... $km/sec$View Solution
- 7A certain string will resonant to several frequencies, the lowest of which is $200 \,cps$. What are the next three higher frequencies to which it resonants?View Solution
- 8The sound intensity level at a point $4 \,m$ from the point source is $10 \,dB$, then the sound level at a distance $2 \,m$ from the same source will be ........ $dB$View Solution
- 9Statement$-1:$ Two longitudinal waves given by equations $y _{1}( x , t )=2 a \sin (\omega t - kx )$ and $y _{2}( x , t )= a \sin (2 \omega t -2 kx )$ will have equal intensity.View Solution
Statement$-2:$ Intensity of waves of given frequency in same medium is proportional to square of amplitude only.
- 10A wire of $10^{-2} kgm^{-1}$ passes over a frictionless light pulley fixed on the top of a frictionless inclined plane which makes an angle of $30^o$ with the horizontal. Masses $m$ and $M$ are tied at two ends of wire such that m rests on the plane and $M$ hangs freely vertically downwards. The entire system is in equilibrium and a transverse wave propagates along the wire with a velocity of $100 ms^{^{-1}}$.View Solution