Two cars are moving on two perpendicular roads towards a crossing with uniform speeds of $72\; km/hr$ and $36\; km/hr$. If first car blows horn of frequency $280\; Hz,$ then the frequency of horn heard by the driver of second car when line joining the cars make $45^o$ angle with the roads; will be .... $Hz$
Diffcult
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
- 1A standing wave pattern is formed on a string. One of the waves is given by equation ${y_1} = a\,\cos \,\left( {\omega t - kx + \pi /3} \right)$ then the equation of the other wave such that at $x = 0$ a node is formedView Solution
- 2A plane sound waves passes from medium $1$ into medium $2$. The speed of sound in medium $1$ is $200\,m/s$ and in medium $2$ is $100 \,m/s$. The ratio of amplitude of the transmitted wave to that of incident wave is :-View Solution
- 3Beats are produced with the help of two sound waves of amplitudes $3$ and $5$ units. The ratio of maximum to minimum intensity in the beats isView Solution
- 4The length of a son meter wire $AB$ is $110\; cm$. Where should the two bridges be placed from $A$ to divide the wire in $3$ segments whose fundamental frequencies are in the ratio of $1:2:3$?View Solution
- 5View SolutionWhich of the following equations represents a travelling wave ?
- 6In a wave motion $y = a\sin (kx - \omega t)$, $y$ can representView Solution
- 7View SolutionA string fixed at both ends resonates at a certain fundamental frequency. Which of the following adjustments would not affect the fundamental frequency?
- 8Two closed pipe produce $10$ beats per second when emitting their fundamental nodes. If their length are in ratio of $25 : 26$. Then their fundamental frequency in $Hz$, areView Solution
- 9Two opens organ pipes of length $50\, cm$ and $50.5\, cm$ produce three beats. Then, the velocity of sound is ..... $m/s$View Solution
- 10The temperature at which the speed of sound in air becomes double of its value at ${0^o}C$ is ...... $K$View Solution