Units and Measurements

Question: In the relation \[y = a\cos (\omega t - kx)\], the dimensional formula for k is

1) \[[{M^0}{L^{ - 1}}{T^{ - 1}}]\]

2) \[[{M^0}L{T^{ - 1}}]\]

3) \[[{M^0}{L^{ - 1}}{T^0}]\]

4) \[[{M^0}LT]\]

Solution:

Explanation: Explanation

dimensions

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