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.*
An observer is approaching with a speed $v$, towards a stationary source emitting sound waves of wavelength $\lambda_0$. The wavelength shift detected by the observer is (Take $c=$ speed of sound)
A source and listener are both moving towards each other with speed $v/10$, where $v$ is the speed of sound. If the frequency of the note emitted by the source is $f$, the frequency heard by the listener would be nearly
The ends of stretched wire of length $L$ are fixed at $x\, = 0$ and $x \,= L$. In one experiment, the displacement of the wire is ${y_1} = A\sin\, \left( {\pi x/L} \right)\sin \,\omega t$ and energy is $E_1$. and in another experiment its displacement is ${y_2} = A\sin \,\left( {2\pi x/L} \right)\sin 2\omega t$ and energy is $E_2$, Then
The note"Saa" on the Sarod and the Sitar have the same pitch. The property of sound that is most important in distinguishing between the two instruments is
A sound source is moving on a circular path of radius $R$ with constant angular speed $\omega $ in anticlockwise direction and emits a frequency $n$ . An observer performs simple harmonic along the path $QPR$ with time period $T = \frac {2\pi }{\omega }$ as shown in the figure. If at $t = 0$ source is at $A$ and observer is at $Q$ and assume $OP$ is very large as compare to radius $R$ and $QP$ , then
The extension in a string obeying Hooke's law is $x.$ The speed of sound in the stretched string is $v.$ If the extension in the string is increased to $1.5x$, the speed of sound will be
A wave equation which gives the displacement along the $Y$ direction is given by the equation $y = {10^4}\sin (60t + 2x)$, where $x$ and $y$ are in metres and $t$ is time in seconds. This represents a wave
An air column, closed at one end and open at the other, resonates with a tuning fork when the smallest length of the column is $50\, cm.$ The next larger length of the column resonating with the same tuning fork is .... $cm$