Solution:
Sol : 1. y / a =Displacement/ amplitude = L/L =No dimensions.
2. bt = No dimension. Since angle has no dimensions.
3. cx = No dimensions. Since angle has no dimensions.
4. Angle has no dimensions, according to the principle of homogeneity of dimensions.
∴ bt = cx => b/c=x/t
L/T = LT-1=> Velocity
