Question Text
Question 1 :
Tapping gently on the surface of water produces concentric ripples. This is due to
Question 2 :
The equation of a plane progressive wave is $y = 0.9 \sin 4\pi [t-\displaystyle \dfrac{x}{2}]$ , when it is reflected at a rigid support, its amplitude becomes $2/3$ of its previous value. The equation <br/>of the reflected wave is :<br/>
Question 3 :
A Sound wave with an amplitude of $3 cm$ starts moving towards right from origin and gets reflected at a rigid wall after a second. If the velocity of the wave is $340 ms^{-1}$ and it has a wavelength of $2 m$, the equations of incident and reflected waves are<br>
Question 5 :
When a sound wave is reflected from a rigid wall, the phase difference between the reflected and incident wave
