An observer is moving towards the stationary source of sound, then
Easy
Download our app for free and get started
(b) Apparent frequency in this case $n' = \frac{{n(v + {v_O})}}{v}$
$\because$ $\frac{{v + {v_0}}}{v} > 1$ ==> $\frac{{n'}}{n} > 1$ i.e. $n' > n$.
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
- 1Two points on a travelling wave having frequency $500\, Hz$ and velocity $300\, m/s$ are $60^o$ out of phase, then the minimum distance between the two points is ..... $m$View Solution
- 2A sine wave of wavelength $\lambda $ is travelling in a medium. The minimum distance between the two particles, always having same speed, isView Solution
- 3A travelling wave pulse is given by $y=\frac{4}{3 x^2+48 t^2+24 x t+2}$ where $x$ and $y$ are in metre and $t$ is in second. The velocity of wave is ........... $m / s$View Solution
- 4The superposition takes place between two waves of frequency $f$ and amplitude $a.$ The total intensity is directly proportional toView Solution
- 5View SolutionIn a stretched string,
- 6A hospital uses an ultrasonic scanner to locate tumours in a tissue. What is the wavelength of sound in the tissue in which the speed of sound is $1.7\; km s ^{-1}$ ? The operating frequency of the scanner is $4.2 \;MHz$View Solution
- 7In a plane progressive wave given by $y = 25\cos (2\pi t - \pi x)$, the amplitude and frequency are respectivelyView Solution
- 8Two identical strings $X$ and $Z$ made of same material have tension $T _{ x }$ and $T _{ z }$ in them. If their fundamental frequencies are $450\, Hz$ and $300\, Hz ,$ respectively, then the ratio $T _{ x } / T _{ z }$ is$.....$View Solution
- 9View SolutionThe minimum audible wavelength at room temperature is about
- 10Find the frequency of minimum distance between compression & rarefaction of a wire. If the length of the wire is $1m$ & velocity of sound in air is $360\, m/s$ .... $sec^{-1}$View Solution