Q. 134.1( 13 Votes )

On the basis of d A. y = a sin 2 / πt T

B. y = a sin vt.

C. y = sin ()

D. y = a2 (sin – cos )

Answer :

Dimensional formula of displacement =


From study of dimensional analysis we know that,


Numbers have no dimension.


Trigonoetric functions are dimensionless.


Constants are dimensionless.


According to above rules


Dimension of


Dimension of


Dimension of


Dimension of


So, only option is C that doesn’t have dimension that of displacement.

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