Question

Is E= mc equation is diamesionnally correct

Answer 1

Answer:

Dimension of Energy, E = [ML²T-²]

Dimension of mass , m = [M]

Dimension of speed of light, c = [LT-¹]

If E = m c

Then, [ML²T-²] must be equal to [M].[LT-¹] = [MLT-¹]

But , [ML²T-²]≠[MLT-¹]

Therefore, E = mc is dimensionally incorrect.