173044 Sound waves of $f=600 \mathrm{~Hz}$ fall normally on a perfectly reflecting wall. The shortest distance from the wall at which all particles will have maximum amplitude of vibration will be (speed of sound $=300 \mathrm{~m} / \mathrm{s}$ )

173045 An observer standing on the seacoast finds that 48 ripples reach the surface per minute If the wavelength of the ripples is $8 \mathrm{~m}$ then the wave velocity is

173046 A source of sound is moving with a velocity of $50 \mathrm{~ms}^{-1}$ towards a stationary observer. The observer measures the frequency of sound as $500 \mathrm{~Hz}$. The apparent frequency of sound as heard by the observer when source is moving away from him with the same speed is (Speed of sound at room temperature is $350 \mathrm{~ms}^{-1}$ ) :

173047 A train is approaching towards a platform with a speed of $10 \mathrm{~ms}^{-1}$ while blowing a whistle of frequency $340 \mathrm{~Hz}$. What is the frequency of whistle heard by a stationary observer on the platform ? Given speed of sound $=340 \mathrm{~ms}^{-1}$.

173044 Sound waves of $f=600 \mathrm{~Hz}$ fall normally on a perfectly reflecting wall. The shortest distance from the wall at which all particles will have maximum amplitude of vibration will be (speed of sound $=300 \mathrm{~m} / \mathrm{s}$ )

173045 An observer standing on the seacoast finds that 48 ripples reach the surface per minute If the wavelength of the ripples is $8 \mathrm{~m}$ then the wave velocity is

173046 A source of sound is moving with a velocity of $50 \mathrm{~ms}^{-1}$ towards a stationary observer. The observer measures the frequency of sound as $500 \mathrm{~Hz}$. The apparent frequency of sound as heard by the observer when source is moving away from him with the same speed is (Speed of sound at room temperature is $350 \mathrm{~ms}^{-1}$ ) :

173047 A train is approaching towards a platform with a speed of $10 \mathrm{~ms}^{-1}$ while blowing a whistle of frequency $340 \mathrm{~Hz}$. What is the frequency of whistle heard by a stationary observer on the platform ? Given speed of sound $=340 \mathrm{~ms}^{-1}$.

173044 Sound waves of $f=600 \mathrm{~Hz}$ fall normally on a perfectly reflecting wall. The shortest distance from the wall at which all particles will have maximum amplitude of vibration will be (speed of sound $=300 \mathrm{~m} / \mathrm{s}$ )

173045 An observer standing on the seacoast finds that 48 ripples reach the surface per minute If the wavelength of the ripples is $8 \mathrm{~m}$ then the wave velocity is

173046 A source of sound is moving with a velocity of $50 \mathrm{~ms}^{-1}$ towards a stationary observer. The observer measures the frequency of sound as $500 \mathrm{~Hz}$. The apparent frequency of sound as heard by the observer when source is moving away from him with the same speed is (Speed of sound at room temperature is $350 \mathrm{~ms}^{-1}$ ) :

173047 A train is approaching towards a platform with a speed of $10 \mathrm{~ms}^{-1}$ while blowing a whistle of frequency $340 \mathrm{~Hz}$. What is the frequency of whistle heard by a stationary observer on the platform ? Given speed of sound $=340 \mathrm{~ms}^{-1}$.

173044 Sound waves of $f=600 \mathrm{~Hz}$ fall normally on a perfectly reflecting wall. The shortest distance from the wall at which all particles will have maximum amplitude of vibration will be (speed of sound $=300 \mathrm{~m} / \mathrm{s}$ )

173045 An observer standing on the seacoast finds that 48 ripples reach the surface per minute If the wavelength of the ripples is $8 \mathrm{~m}$ then the wave velocity is

173046 A source of sound is moving with a velocity of $50 \mathrm{~ms}^{-1}$ towards a stationary observer. The observer measures the frequency of sound as $500 \mathrm{~Hz}$. The apparent frequency of sound as heard by the observer when source is moving away from him with the same speed is (Speed of sound at room temperature is $350 \mathrm{~ms}^{-1}$ ) :

173047 A train is approaching towards a platform with a speed of $10 \mathrm{~ms}^{-1}$ while blowing a whistle of frequency $340 \mathrm{~Hz}$. What is the frequency of whistle heard by a stationary observer on the platform ? Given speed of sound $=340 \mathrm{~ms}^{-1}$.