A wave pulse on a string has the dimension shown in figure. The waves speed is $v = 1 \,\,cm/s$. If point $O$ is a free end. The shape of wave at time $t = 3 \,\,s$ is :
Advanced
Download our app for free and get started
In three seconds, the distance travelled by wave=1 $c m / s \times 3 s=3 c m$
Hence the center of the wave, the crest, reaches the point $O '$ in the time.
The amplitude of the wave becomes $1 \mathrm{cm}+1 \mathrm{cm}=2 \mathrm{cm}$
Hence correct answer is option $D.$
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 stationary observer receives sound from two identical tuning forks, one of which approaches and the other one recedes with the same speed (much less than the speed of sound). The observer hears $2\; beats/sec$. The oscillation frequency of each tuning fork is $v_{0}=1400 \;\mathrm{Hz}$ and the velocity of sound in air is $350\; \mathrm{m} / \mathrm{s}$. The speed of each tuning fork is close toView Solution
- 2View SolutionWhat is the phase difference between the displacement wave and pressure wave in sound wave?
- 3In the Kundts tube experiment (shown in fig. $(i)$), the rod is clamped at the end instead of clamping it at the center as shown in fig. $(ii).$ It is known that speed of sound in air is $330\ m/s$, powder piles up at successive distance of $0.6\ m$ and length of rod used is $1\ m$, speed of sound in rod is .... $\frac{m}{s}$View Solution
- 4The frequency changes by $10\%$ as a sound source approaches a stationary observer with constant speed $v_s$. What would be the percentage change in frequency as the source recedes the observer with the same speed. ... $\%$ Given that $v_s < v$. ($v =$ speed of sound in air)View Solution
- 5View SolutionA transverse wave is travelling along a stretched string from right to left. The figure shown represents the shape of the string at a given instant. At this instant
- 6A block of mass $1\,\, kg$ is hanging vertically from a string of length $1\,\, m$ and mass /length $= 0.001\,\, Kg/m$. A small pulse is generated at its lower end. The pulse reaches the top end in approximately .... $\sec$View Solution
- 7A bus is moving with a velocity of $5 m/s$ towards a huge wall. the driver sounds a horn of frequency $165 Hz.$ If the speed of sound in air is $355 m/s,$ the number of beats heard per second by a passenger on the bus will beView Solution
- 8Two close organ pipe having length $20\,cm$ and $20.5\, cm$ produce $5\, beats/sec$. Determine the frequency of both organ pipeView Solution
- 9A 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
- 10The tension in a piano wire is $10N$. What should be the tension in the wire to produce a note of double the frequency .... $N$View Solution