Single Choice

The vertical displacement of the particle of the string at x = 7 cm and t = 0.01s will be

A0.75 cm
B0.5 cm
C0.25 cm
Correct Answer
DZero

Solution

Velocity of the wave inside the string=$$\sqrt{\dfrac{T}{\mu}}=10m/s$$
Solution of wave that gives displacement at any piece of the string at any time is
$$y=f(x,t)= \dfrac{(x-vt)}{4}+1 for -4 $$= -(x-vt)+1 for vt $$=0 otherwise$$
$$vt=1000cm/s\times 0.01s=10cm$$
As $$(vt-4)<(x=7cm)$$\implies y=\dfrac{1}{4}(7-10)+1=0.25cm$$


SIMILAR QUESTIONS

Sound Waves

A travelling harmonic wave is represented by the equation $$ y (x,t)=10^{-3}$$ $$\sin ({50t+2x) , } $$, where x and y are in meter and t is in seconds. Which of the following is a correct statement about the wave? The wave is propagating along the__?

Sound Waves

The transverse displacement $$\mathrm{y}(\mathrm{x}, \mathrm{t})$$ of a wave on a string is given by $$\mathrm{y}(\mathrm{x},\mathrm{t})=\mathrm{e}^{-(\mathrm{a}\mathrm{x}^{2}+\mathrm{b}\mathrm{t}^{2}+2\sqrt{\mathrm{a}\mathrm{b}}\mathrm{x}\mathrm{t}\}}$$. This represents a :

Sound Waves

Write the equation of the wave for a general time t, if the wave speed is v.

Sound Waves

A transverse harmonic wave on a string is described by $$y(x,t) = 3$$sin $$(36t + 0.08x + \dfrac{\pi}{4})$$ where $$x$$ and $$y$$ are in cm and $$t$$ is in $$s$$. Which of the following statement incorrect?

Sound Waves

Name the characteristic of the sound affected due to a change in its (a) amplitude (b) wave form (c) frequency.

Sound Waves

Name the characteristic of the sound affected due to a change in its (a) amplitude (b) wave form (c) frequency.

Sound Waves

The equation of displacement of two waves are given as $$y_1 = 10 \ sin (3\pi t + \pi /3)$$ $$y_2 = 5 \ (sin 3\pi t + \sqrt{3} cos 3 \pi t)$$, then what is the ratio of their amplitude;

Contact Details