A wave is represented by the equation y=Asin⁡(10πx+15πt+π/3) where x is in metre and t is in second. The expression represents

The equation of a plane wave moving in negative x-direction is given byy=Asin⁡2πλ(vt+x)+ϕ Comparing the given equation with standard equation, we have 2πλ=10π and 2πλv=15π ∴ λ=210=0⋅2m and V=15πλ2π=15×0⋅22=1⋅5m/s Hence (2) and (3) are correct.