MCQ
A sine wave is travelling in a medium. The minimum distance between the two particles, always having same speed, is:
  • A
    $\frac{\lambda}{4}$
  • B
    $\frac{\lambda}{3}$
  • $\frac{\lambda}{2}$
  • D
    $\lambda.$

Answer

Correct option: C.
$\frac{\lambda}{2}$

A sme wave has a maxima and a minimum and the particle displacement has phase difference of n radians. The speeds at the maximum point and at the minimum point are same although the direction of motion are different. The difference between the posiuons of maxima and minima Is equal to $\frac{\lambda}{2}.$

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 initial mass of a rocket is $1000\, {kg} .$ Calculate at what rate the fuel (In ${kg} {s}^{-1}$) should be burnt so that the rocket is given an acceleration of $20 \,{ms}^{-2}$. The gases come out at a relative speed of $500\, {ms}^{-1}$ with respect to the rocket : [Use $ g = 10\, {m} / {s}^{2}$ ]
Two resistors $R$ and $2R$ are connected in series in an electric circuit. The thermal energy developed in $R$ and $2R$ are in the ratio:
In projectile motion, the modulus of rate of change of velocity
A bird flies for $4 \,s$ with a velocity of $|\;t - 2|\;m/s$ in a straight line, where $t$ is time in seconds. It covers a distance of .........$m$
A spring mass system (mass $m$, spring constant $\mathrm{k}$ and natural length $l$ ) rest in equilibrium on a horizontal disc. The free end of the spring is fixed at the centre of the disc. If the disc together with spring mass system, rotates about it's axis with an angular velocity $\omega,\left(\mathrm{k} > > \mathrm{m} \omega^{2}\right)$ the relative change in the length of the spring is best given by the option
Three identical vessels are filled with equal masses of three different liquids $A, B$ and $C$   $({\rho _A} > {\rho _B} > {\rho _C})$. The pressure at the base will be
A small drop of water falls from rest through a large height $h$ in air; the final velocity is
Water rises to height $'h'$ in capillary tube. If the length of capillary tube above the surface of water is made less than $'h'$, then
A ball is thrown at an angle $\theta$ with the horizontal. Its horizontal range is equal to its maximum height. This is possible only when the value of $\tan \theta$ is ..........
There is some liquid in a closed bottle. The amount of liquid remains constant as time passes. The vapour in the remaining part: