MCQ
The frequency of a sound wave is $n$ and its velocity is $v.$ If the frequency is increased to $4n,$ the velocity of the wave will be:
  • $\nu$
  • B
    $2\nu$
  • C
    $4\nu$
  • D
    $\frac{\nu}{4}$

Answer

Correct option: A.
$\nu$
Velocity of sound is independent of frequency.
Therefore, it is same $(\nu)$ for frequency $n$ and $4n.$

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

There is relationship between the mean free path of the molecules of a gas and its density.
Which one of the following pairs of quantities and their units is a proper match
Two simple pendulums of length $5m$ and $10m$ respectively are given small linear displacement in one direction at the same time. They will be again in the phase when the pendulum of shorter length has completed oscillations:
You lift a suitcase from the floor and keep it on a table. The work done by you on the suitcase does not depend on:
Two spherical bodies $\mathrm{A}$ (radius $6 \mathrm{~cm}$ ) and $\mathrm{B}$ (radius $18 \mathrm{~cm}$ ) are at temperature $\mathrm{T}_1$ and $\mathrm{T}_2$, respectively. The maximum intensity in the emission spectrum of $\mathrm{A}$ is at $500 \mathrm{~nm}$ and in that of $\mathrm{B}$ is at $1500 \mathrm{~nm}$. Considering them to be black bodies, what will be the ratio of the rate of total energy radiated by $A$ to that of $B$ ?
A spherical planet has a mass $M$ and diameter $D$ . A particle of mass $m$ falling freely near the surface of this planet will experience an acceleration due to gravity , equal to  
A weightless thread can support tension upto $30 \,N$. A stone of mass $0.5 \,kg$ is tied to it and is revolved in a circular path of radius $2 \,m$ in a vertical plane. If $g = 10m/{s^2}$, then the maximum angular velocity of the stone will be ........ $rad/s$
A large block of wood of mass $M =5.99\, kg$ is hanging from two long massless cords. A bullet of mass $m =10\, g$ is fired into the block and gets embedded in it. The (block $+$ bullet) then swing upwards, their centre of mass rising a vertical distance $h =9.8\,cm$ before the (block $+$ bullet) pendulum comes momentarily to rest at the end of its arc. The speed of the bullet just before collision is: (Take $g =9.8\, ms ^{-2}$ ) (in $m/s$)
Why are drops and bubbles spherical?
Absolute zero $(0\, K)$ is that temperature at which