173023 When a source of sound crosses a stationary observer then the change in apparent frequency of sound observed by the observer, when $\mathrm{V}_{\mathrm{s}}<<\mathrm{V}$, will be-

173025 Two tuning forks with natural frequencies 340 $\mathrm{Hz}$ each moves relative to a stationary observer. One fork moves away from the observer, while the other moves towards the observer at the same speed. The observer hears beats of frequency $3 \mathrm{~Hz}$. Find the speed of the tuning forks.

173026 A source of sound $S$ emitting waves of frequency $100 \mathrm{~Hz}$ and an observer $O$ are located at some distance from each other. The source is moving with a speed of $19.4 \mathrm{~ms}^{-1}$ at an angle of $60^{\circ}$ with the source observer line as shown in the figure. The observer is at rest. The apparent frequency observed by the observer is (velocity of sound in air $330 \mathrm{~ms}^{-1}$ )

173027 A sonometer wire under tension of $64 \mathrm{~N}$ vibrating in its fundamental mode is in resonance with a vibrating tuning fork. The vibrating tuning fork is now moved away from the vibrating wire with a constant speed and an observer standing near sonometer hears one beat per second. The speed with which the tuning fork moved is (speed of sound in air is $330 \mathrm{~m} / \mathrm{s}$, vibrating portion of sonometer wire has length $10 \mathrm{~cm}$ and mass $1 \mathrm{gm}$ )

173023 When a source of sound crosses a stationary observer then the change in apparent frequency of sound observed by the observer, when $\mathrm{V}_{\mathrm{s}}<<\mathrm{V}$, will be-

173025 Two tuning forks with natural frequencies 340 $\mathrm{Hz}$ each moves relative to a stationary observer. One fork moves away from the observer, while the other moves towards the observer at the same speed. The observer hears beats of frequency $3 \mathrm{~Hz}$. Find the speed of the tuning forks.

173026 A source of sound $S$ emitting waves of frequency $100 \mathrm{~Hz}$ and an observer $O$ are located at some distance from each other. The source is moving with a speed of $19.4 \mathrm{~ms}^{-1}$ at an angle of $60^{\circ}$ with the source observer line as shown in the figure. The observer is at rest. The apparent frequency observed by the observer is (velocity of sound in air $330 \mathrm{~ms}^{-1}$ )

173027 A sonometer wire under tension of $64 \mathrm{~N}$ vibrating in its fundamental mode is in resonance with a vibrating tuning fork. The vibrating tuning fork is now moved away from the vibrating wire with a constant speed and an observer standing near sonometer hears one beat per second. The speed with which the tuning fork moved is (speed of sound in air is $330 \mathrm{~m} / \mathrm{s}$, vibrating portion of sonometer wire has length $10 \mathrm{~cm}$ and mass $1 \mathrm{gm}$ )

173023 When a source of sound crosses a stationary observer then the change in apparent frequency of sound observed by the observer, when $\mathrm{V}_{\mathrm{s}}<<\mathrm{V}$, will be-

173025 Two tuning forks with natural frequencies 340 $\mathrm{Hz}$ each moves relative to a stationary observer. One fork moves away from the observer, while the other moves towards the observer at the same speed. The observer hears beats of frequency $3 \mathrm{~Hz}$. Find the speed of the tuning forks.

173026 A source of sound $S$ emitting waves of frequency $100 \mathrm{~Hz}$ and an observer $O$ are located at some distance from each other. The source is moving with a speed of $19.4 \mathrm{~ms}^{-1}$ at an angle of $60^{\circ}$ with the source observer line as shown in the figure. The observer is at rest. The apparent frequency observed by the observer is (velocity of sound in air $330 \mathrm{~ms}^{-1}$ )

173027 A sonometer wire under tension of $64 \mathrm{~N}$ vibrating in its fundamental mode is in resonance with a vibrating tuning fork. The vibrating tuning fork is now moved away from the vibrating wire with a constant speed and an observer standing near sonometer hears one beat per second. The speed with which the tuning fork moved is (speed of sound in air is $330 \mathrm{~m} / \mathrm{s}$, vibrating portion of sonometer wire has length $10 \mathrm{~cm}$ and mass $1 \mathrm{gm}$ )

173023 When a source of sound crosses a stationary observer then the change in apparent frequency of sound observed by the observer, when $\mathrm{V}_{\mathrm{s}}<<\mathrm{V}$, will be-

173025 Two tuning forks with natural frequencies 340 $\mathrm{Hz}$ each moves relative to a stationary observer. One fork moves away from the observer, while the other moves towards the observer at the same speed. The observer hears beats of frequency $3 \mathrm{~Hz}$. Find the speed of the tuning forks.

173026 A source of sound $S$ emitting waves of frequency $100 \mathrm{~Hz}$ and an observer $O$ are located at some distance from each other. The source is moving with a speed of $19.4 \mathrm{~ms}^{-1}$ at an angle of $60^{\circ}$ with the source observer line as shown in the figure. The observer is at rest. The apparent frequency observed by the observer is (velocity of sound in air $330 \mathrm{~ms}^{-1}$ )

173027 A sonometer wire under tension of $64 \mathrm{~N}$ vibrating in its fundamental mode is in resonance with a vibrating tuning fork. The vibrating tuning fork is now moved away from the vibrating wire with a constant speed and an observer standing near sonometer hears one beat per second. The speed with which the tuning fork moved is (speed of sound in air is $330 \mathrm{~m} / \mathrm{s}$, vibrating portion of sonometer wire has length $10 \mathrm{~cm}$ and mass $1 \mathrm{gm}$ )