The equation of a progressive wave travelling along the -axis is

PHYSICS · Single correct · A Level · Physics · Measurements and their errors · Measurements and their errors

Problem

The equation of a progressive wave travelling along the

x

-axis is

y = A \sin (kx - \omega t)

, where

A

is amplitude and

k,\,\omega

are constants. The dimensional formula of

k

is (a)

[T^{-1}]

(b) Dimensionless (c)

[L^{-1}]

(d)

[L]