Question

Q6. In the equation: y = A Sin(ax
+ bt) the dimensionless
quantity is: *
1 A
2 ax
3 bt
4 both ax & bt​

Answer 1

Answer:

In the given equation y=Asin(ωt−kx)

Since, trigonometric function is a dimensionless quantity. So, (ωt−kx)is also dimensionless quantity.

So,

(ωt−kx)=1

ωt=1

[ω]=

[T]

1

=[T]

−1

kx=1

[k]=

[L]

1

=[L]

−1