waves

Related Questions

• There is a destructive interference between the two waves of wavelength $\lambda$ coming from two different paths at a point. To get maximum sound or constructive interference at that point, the path of one wave is to be increased by

  ---

• The minimum audible wavelength at room temperature is about

  ---

• A siren emitting sound of frequency 500 Hz is going away from a static listener with a speed of 50 m/sec. The frequency of sound to be heard, directly from the siren, is

  ---

• $y=a\cos (kx+\omega t)$ superimposes on another wave giving a stationary wave having node at $x = 0$. What is the equation of the other wave

  ---

• Equation of the progressive wave is given by : $y=a\sin \pi (40t-x)$ where $a$ and $x$ are in metre and $t$ in second. The velocity of the wave is

  ---