MCQ
Two wave pulses travel in opposite directions on a string and approach each other. The shape of one pulse is inverted with respect to the other.
  • A
    The pulses will collide with each other and vanish after collision.
  • B
    The pulses will reflect from each other i.e., the pulse going towards right will finally move towards left and vice versa.
  • C
    The pulses will pass through each other but their shapes will be modified.
  • The pulses will pass through each other without any change in their shapes.

Answer

Correct option: D.
The pulses will pass through each other without any change in their shapes.
The pulses continue to retain their Identity after they meet, but the moment they meet their wave profile differs from the individual pulse.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

The mass of water rises in capillary tube of radius $R$ is $M.$ The mass of water that rises in tube of radius $2R$ is:
The vibration of a string fixed at both ends are described by $Y= 2 \,\,sin(\pi x) \,\,sin\,\,(100\pi t)$ where $Y$ is in $mm$,$x$ is in $cm$,$t$ in $sec$ then
In $a$ one dimensional collision between two identical particles $A$ and $B, B$ is stationary and $A$ has momentum $p$ before impact. During impact, $B$ gives impulse $J$ to $A.$
A particle moving in a straight line covers half the distance with speed of $3 \,m/s$. The other half of the distance is covered in two equal time intervals with speed of $4.5 \,m/s$ and $7.5 \,m/s$ respectively. The average speed of the particle during this motion is...... $\,m/s$
The surface tension of liquid is $0.5\, N/m$. If a film is held on a ring of area $0.02 \,m^2$, its surface energy is
Consider a point $P$ on the circumference of a disc rolling along a horizontal surface. If $R$ is the radius of the disc, the distance through which $P$ moves in one full rotation of the disc  is:
The first law of thermodynamics is concerned with the conservation of
In the List-$I$ below, four different paths of a particle are given as functions of time. In these functions, $\alpha$ and $\beta$ are positive constants of appropriate dimensions and $\alpha \neq \beta$. In each case, the force acting on the particle is either zero or conservative. In List-II, five physical quantities of the particle are mentioned: $\overrightarrow{ p }$ is the linear momentum, $\bar{L}$ is the angular momentum about the origin, $K$ is the kinetic energy, $U$ is the potential energy and $E$ is the total energy. Match each path in List-$I$ with those quantities in List-$II$, which are conserved for that path.
List-$I$ List-$II$
$P$ $\dot{r}(t)=\alpha t \hat{t}+\beta t \hat{j}$ $1$ $\overrightarrow{ p }$
$Q$ $\dot{r}(t)=\alpha \cos \omega t \hat{i}+\beta \sin \omega t \hat{j}$ $2$ $\overrightarrow{ L }$
$R$ $\dot{r}(t)=\alpha(\cos \omega t \hat{i}+\sin \omega t \hat{j})$ $3$ $K$
$S$ $\dot{r}(t)=\alpha t \hat{i}+\frac{\beta}{2} t^2 \hat{j}$ $4$ $U$
  $5$ $E$
A constant torque of $1000\; Nm$ turns a wheel of moment of inertia $200 \;kgm ^{2}$ about an axis through its centre. The wheel is at rest initially. Its angular velocity after $3\; s$ is
Mass $M$ is lowered by the help of a string at constant acceleration $\frac{g}{2}$ for distance $x$. Work done by string will be :-