Embibe Experts Solutions for Chapter: Stationary Waves, Exercise 1: Exercise 1

If the length of wire is $2 \mathrm{m}$ and the mass is $80 \mathrm{kg}$, the tension in the wire will be, if the frequency is $\frac{1}{4} \mathrm{Hz}$

Two stretched wires $A$ and $B$ of the same lengths vibrate independently. $1$ If the radius, density and tension of wire $A$ are respectively twice those of wire $B$, then the fundamental frequency of vibration of $A$ relative to that of $B$ is

In a tight string, to double the fundamental frequency its length is made $\frac{3}{4}$ times the initial length, tension will be changed by which multiple? 

A metal wire of linear mass density of $9.8 \mathrm{g} {\mathrm{m}}^{-1}$ is stretched with a tension of $10 \mathrm{kg}$ wt between two rigid supports $1 \mathrm{metre}$ apart. The wire passes at its middle point between the poles of a permanent magnet, and it vibrates in resonance when carrying an alternating current of frequency $n$. The frequency $n$ of the alternating source is

The equation $y=0.15\sin 5x\cos 300t$, describes a stationary wave. The wavelength of the station any wave is

The frequency of a stretched wire is $n$, if tension is increased by two times, the frequency will be

Equation $y=2a\cos \left(kx\right)\sin \left(\omega t\right)$, represents

A block $P$ having mass $m$ is placed on a horizontal frictionless plane. Another block having same mass is placed on it and is connected to a spring of spring constant $k.$ The two blocks are pulled by a distance $A$ and released. Block $Q$ oscillates without slipping. The maximum value of frictional force between two blocks is