Stationary waves
Easy
Download our app for free and get started
Stationary waves do not transport energy. The energy gets cancelled out due to superposing of the two waves in opposite directions. These stationary waves have points which equals to zero at all time. These points are called nodes. Also there are points at which the amplitude gets to maximum or minimum at all time. These points are called antinodes.
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
- 1The engine of a train moving with speed $10\,ms ^{-1}$ towards a platform sounds a whistle at frequency $400\,Hz$. The frequency heard by a passenger inside the train is $........\,Hz$ (neglect air speed. Speed of sound in air $330\,ms ^{-1}$ )View Solution
- 2Two tuning forks $P$ and $Q$ are vibrated together. The number of beats produced are represented by the straight line $OA$ in the following graph. After loading $Q$ with wax again these are vibrated together and the beats produced are represented by the line $OB.$ If the frequency of $P$ is $341Hz,$ the frequency of $Q$ will be ... $ Hz$View Solution
- 3A musician using an open flute of length $50\,cm$ produces second harmonic sound waves. A person runs towards the musician from another end of a hall at a speed of $10 \,km/h.$ If the wave speed is $330\,m/s,$ the frequency heard by the running person shall be close to...... $Hz$View Solution
- 4A wire of density $9 \times 10^3 kg /m^3$ is stretched between two clamps $1 m$ apart and is subjected to an extension of $4.9 \times 10^{-4} m$. The lowest frequency of transverse vibration in the wire is ..... $Hz$ ($Y = 9 \times 10^{10} N / m^2$)View Solution
- 5A wave in a string has an amplitude of $2\,\, cm.$ The wave travels in the $+ve$ direction of $x-$ axis with a speed of $128\,\, m/s$ and it is noted that $5$ complete waves fit in $4\,\, m$ length of the string. The equation describing the wave isView Solution
- 6A 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 $350 m/s$View Solution
- 7The path Difference between the two waves ${y_1} = {a_1}\,\sin \,\left( {\omega t - \frac{{2\pi x}}{\lambda }} \right)$ and ${y_2} = {a_2}\,\cos \,\left( {\omega t - \frac{{2\pi x}}{\lambda } + \phi } \right)$ isView Solution
- 8The frequency of echo will be $.......Hz$ if the train blowing a whistle of frequency $320\,Hz$ is moving with a velocity of $36\,km / h$ towards a hill from which an echo is heard by the train driver. Velocity of sound in air is $330\,m / s$.View Solution
- 9A boat at anchor is rocked by waves whose crests are $100\, m$ apart and velocity is $25\, m/sec$. The boat bounces up once in every: ... $sec$View Solution
- 10Two sirens situated one kilometer apart are producing sound of frequency $330 Hz$. An observer starts moving from one siren to the other with a speed of $2 m/s$. If the speed of sound be $330 m/s$, what will be the beat frequency heard by the observerView Solution