A wave is represented by the equation
`y = A sin(10pix + 15pit + (pi)/(3))`
where `x` is in meter and `t` is in seconds. The expression represents :

Options

A. A wave travelling in the positive x-direction with a velocity of `1.5ms^(-1)`
B. A wave travelling in the negative x-direction with a velocity of `1.5 ms^(-1)`
C. A wave travelling in the negative x-direction with a wavelength of 0.2 m
D. A wave travelling in the positive x-direction with a wavelength of 0.2 m

Answer

B, C

Explanation

By comparing the given equation with the standard equation of a simple harmonic wave `Y = A sin(omegat - kx + phi)` We have option (B) and ("C") are correct.