Embibe Experts Solutions for Chapter: Wave Motion, Exercise 1: Exercise 1

Water waves produced by a motor boat sailing in water are

With propagation of longitudinal waves through a medium, the quantity transmitted is

If the frequency of sound increases, then the closed length of an air column?

The equation of a wave travelling in a string can be written as $y=3 \cos \mathrm{\pi } \left(100t-x\right) \mathrm{cm}$. Its wavelength is 

The equation of a progressive wave can be given by $y=15\sin (660\mathrm{\pi t}-0.02\mathrm{\pi x})\mathrm{cm}$. The frequency of the wave is

Which one of the following is not true for progressive wave given by $y=4 \sin 2\mathrm{\pi }\left(\frac{t}{0.02}-\frac{\mathrm{x}}{100}\right) \mathrm{cm}$

Equation of a wave motion (with t in second and x in metre) is given by, $y=7 \sin \left(7\mathrm{\pi t}-0.04\mathrm{\pi x}+\raisebox{1ex}{$\mathrm{\pi }$}\!\left/ \!\raisebox{-1ex}{$3$}\right.\right)$. The velocity of the wave is given by :

The displacement $y$ of a wave travelling in the $x$ direction is given by $y = (2\times {10}^{-3})$ $\sin (300t-2x+\pi /4)$, where $x$ and $y$ are measured in metres and $t$in second. The speed of the wave is