173096 A source of sound and an observer are approaching each other with the same speed, which is equal to $\frac{1}{10}$ times the speed of sound. The apparent relative change in the frequency of the source is:

173099 A whistle producing sound waves of frequency $9500 \mathrm{~Hz}$ and above is approaching a stationary person with speed $v \mathrm{~m} / \mathrm{s}$. The velocity of sound in air is $300 \mathrm{~m} / \mathrm{s}$. If the person can hear frequencies upto a maximum of $10000 \mathrm{~Hz}$, the maximum value of $v$ upto which he can hear the whistle is

173101 A source of sound of frequency $600 \mathrm{~Hz}$ is inside water. The speed of sound in water is $1500 \mathrm{~ms}^{-1}$ and in air it is $300 \mathrm{~ms}^{-1}$. The frequency and wavelength of sound recorded by an observer who is standing in air respectively are

172928 The engine of a train moving with speed $10 \mathrm{~ms}^{-1}$ towards a platform sounds a whistle at frequency $400 \mathrm{~Hz}$. The frequency heard by a passenger inside the train is (neglect air speed. Speed of sound in air $330 \mathrm{~ms}^{-1}$ )

173096 A source of sound and an observer are approaching each other with the same speed, which is equal to $\frac{1}{10}$ times the speed of sound. The apparent relative change in the frequency of the source is:

173099 A whistle producing sound waves of frequency $9500 \mathrm{~Hz}$ and above is approaching a stationary person with speed $v \mathrm{~m} / \mathrm{s}$. The velocity of sound in air is $300 \mathrm{~m} / \mathrm{s}$. If the person can hear frequencies upto a maximum of $10000 \mathrm{~Hz}$, the maximum value of $v$ upto which he can hear the whistle is

173101 A source of sound of frequency $600 \mathrm{~Hz}$ is inside water. The speed of sound in water is $1500 \mathrm{~ms}^{-1}$ and in air it is $300 \mathrm{~ms}^{-1}$. The frequency and wavelength of sound recorded by an observer who is standing in air respectively are

172928 The engine of a train moving with speed $10 \mathrm{~ms}^{-1}$ towards a platform sounds a whistle at frequency $400 \mathrm{~Hz}$. The frequency heard by a passenger inside the train is (neglect air speed. Speed of sound in air $330 \mathrm{~ms}^{-1}$ )

173096 A source of sound and an observer are approaching each other with the same speed, which is equal to $\frac{1}{10}$ times the speed of sound. The apparent relative change in the frequency of the source is:

173099 A whistle producing sound waves of frequency $9500 \mathrm{~Hz}$ and above is approaching a stationary person with speed $v \mathrm{~m} / \mathrm{s}$. The velocity of sound in air is $300 \mathrm{~m} / \mathrm{s}$. If the person can hear frequencies upto a maximum of $10000 \mathrm{~Hz}$, the maximum value of $v$ upto which he can hear the whistle is

173101 A source of sound of frequency $600 \mathrm{~Hz}$ is inside water. The speed of sound in water is $1500 \mathrm{~ms}^{-1}$ and in air it is $300 \mathrm{~ms}^{-1}$. The frequency and wavelength of sound recorded by an observer who is standing in air respectively are

172928 The engine of a train moving with speed $10 \mathrm{~ms}^{-1}$ towards a platform sounds a whistle at frequency $400 \mathrm{~Hz}$. The frequency heard by a passenger inside the train is (neglect air speed. Speed of sound in air $330 \mathrm{~ms}^{-1}$ )

173096 A source of sound and an observer are approaching each other with the same speed, which is equal to $\frac{1}{10}$ times the speed of sound. The apparent relative change in the frequency of the source is:

173099 A whistle producing sound waves of frequency $9500 \mathrm{~Hz}$ and above is approaching a stationary person with speed $v \mathrm{~m} / \mathrm{s}$. The velocity of sound in air is $300 \mathrm{~m} / \mathrm{s}$. If the person can hear frequencies upto a maximum of $10000 \mathrm{~Hz}$, the maximum value of $v$ upto which he can hear the whistle is

173101 A source of sound of frequency $600 \mathrm{~Hz}$ is inside water. The speed of sound in water is $1500 \mathrm{~ms}^{-1}$ and in air it is $300 \mathrm{~ms}^{-1}$. The frequency and wavelength of sound recorded by an observer who is standing in air respectively are

172928 The engine of a train moving with speed $10 \mathrm{~ms}^{-1}$ towards a platform sounds a whistle at frequency $400 \mathrm{~Hz}$. The frequency heard by a passenger inside the train is (neglect air speed. Speed of sound in air $330 \mathrm{~ms}^{-1}$ )