In the relation y=a cos(wt-kx), the dimensional formula for k is
In the relation y=a cos(wt-kx), the dimensional formula for k is
Asked by Anil | 10th May, 2017, 08:54: PM
Expert Answer:
The dimensional formula for 'k' can be obtained in two ways.
First method:
As (ωt - kx) is an angle, it has to be dimensionless. So, kx should be dimensionless.
Hence, the dimensions of k = 1/dimensions of x
Therefore, [k] = L-1
Second method: Dimension of ωt = dimension of kx
Answered by Romal Bhansali | 11th May, 2017, 02:39: PM
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