A source of sound $S$ is moving with a velocity $50m/s$ towards a stationary observer. The observer measures the frequency of the source as $1000 Hz$. What will be the apparent frequency of the source when it is moving away from the observer after crossing him .... $Hz$ $?$ The velocity of sound in the medium is $350 m/s$
Medium
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
- 1Three coherent waves of equal frequencies having amplitude $10 \,\, \mu m$, $4\,\,\mu m$ and $7 \,\,\mu m$ respectively, arrive at a given point with successive phase difference of $\pi /2$. The amplitude of the resulting wave in $mm$ is given byView Solution
- 2View SolutionStanding waves can be produced
- 3A tunning fork produces $5\, beats/sec$ when the length of a sonometer wire is either $1\, m$ or $1.05\, m$. Calculate the frequency of tunning fork .... $Hz$View Solution
- 4An open pipe resonates with a tuning fork of frequency $500 Hz$. it is observed that two successive nodes are formed at distances $16$ and $46 cm $ from the open end. The speed of sound in air in the pipe is ..... $m/s$View Solution
- 5A metal rod of $1\; m$ length, is dropped exact vertically on to a hard metal floor. With an oscilloscope, it is determined that the impact produces a longitudinal wave of $1.2 \;k Hz$ frequency. The speed of sound in the metal rod isView Solution
- 6A man standing in front of a mountain beats a drum at regular intervals. The rate of drumming is generally increased and he finds that the echo is not heard distinctly when the rate becomes $40$ per minute. He then moves nearer to the mountain by $90 m$ and finds that echo is again not heard when the drumming rate becomes $60$ per minute. The distance between the mountain and the initial position of the man is .... $m$View Solution
- 7A closed and an open organ pipe have same lengths. If the ratio of frequencies of their seventh overtones is $\left(\frac{a-1}{a}\right)$ then the value of $a$ isView Solution
- 8The equation of a wave is represented by $y = {10^{ - 4}}\sin \,\left[ {100\,t - \frac{x}{{10}}} \right].$ The velocity of the wave will be .... $m/s$View Solution
- 9View SolutionA big explosion on the moon cannot be heard on the earth because
- 10A source of sound $A$ emitting waves of frequency $1800\,Hz$ is falling towards ground with a terminal speed $v.$ The observer $B$ on the ground directly beneath the source receives waves of frequency $2150\,Hz.$ The source $A$ receives waves, reflected from ground of frequency nearly ..... $Hz$ (Speed of sound $= 343\,m/s$ )View Solution