A simple harmonic wave-train is travelling in a gas in the positive direction of the X-axis.
Channel: Doubtnut
Date: 2021-11-02

A simple harmonic wave-train is travelling in a gas in the positive direction of the X-axis.Its amplitude is 2 cm, velocity `45 ms^(-1)` and frequency `75 s^(-1)`.Write down the equation of the wave Find the displacement of the particle of the medium at a distance of 135 cm from the origin in the direction of the wave at the instant t=3 s.