Question

23. Which of the following relation cannot be deduced using dimensional analysis?
[The symbols have their usual meanings]
(1) y = A sin(at + kx)
(2) v = u + at
(3) KE=1/2mv^2
(4) All of these..​

Answer 1

Explanation:

we cannot deduced this relation by dimensional because in dimensional analysis sin(wt + kx) is always taken as dimensionless. it also cannot deduced by dimensional analysis because dimensions cannot be used to derive relations other than product of power function. ... so, it also cannot deduced by dimensional analysis.