JEE Main2013PhysicsWaves and SoundActual
When two sound waves travel in the same direction in a medium, the displacements of a particle located at ' x ' at time ' t ' is given by : aligned & y₁=0.05 (0.50 x-100 t) & y₂=0.05 (0.46 x-92 t) aligned where y₁, y₂ and x are in meters and t in seconds. The speed of sound in the medium is :
Options
- A92 ~m / s
- B200 ~m / s
- C100 ~m / s
- D332 ~m / s
Correct answer
B. 200 ~m / s
Step-by-step solution
Standard equation y(x, t)=A ( V x- t ) From any of the displacement equation Say y ₁ V =0.50 and =100 100 V =0.5 V = 100 0.5 =200 ~m / s