G L Mittal and TARUN MITTAL Solutions for Chapter: Progressive Harmonic Waves, Exercise 3: FOR DIFFERENT COMPETITIVE EXAMINATIONS

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

The relation between phase difference and path difference is :

Two points are located at a distance of $10 \mathrm{m}$  and $15 \mathrm{m}$ from the source of oscillation. The period of oscillation is $0.05 \mathrm{s}$  and the velocity of the wave is $300 \mathrm{m} {\mathrm{s}}^{-1}$. What is the phase difference between the oscillations of two points ?

The speed of a wave is $360 \mathrm{m} {\mathrm{s}}^{-1}$and the frequency is $5 \mathrm{hertz}$. The phase difference between two nearby particles is $60°$. The path difference between them will be :

The amplitude $a$ and the angular velocity $\omega$ of four waves are as following. Which wave has maximum intensity ?

 If the amplitude $a$ of sound waves be doubled but the frequency $n$ lowered to one-fourth, the intensity $I$ of sound at the same place will :

The ratio of intensities of two waves is $1:16$. The ratio of their amplitudes will be :

As a wave propagates