Planck's constant has the dimension (unit) of

Options

A. angular momentum
B. linear momentum
C. force
D. energy

Answer

A

Explanation

The formula for the plunk constant is
`h=E/v=([ML^(2)T^(-2)])/([T^(-1)])=ML^(2)T^(-1)`
The angular momentum =moment of inertia x angular velocity
Hence the dimension of angular momentum `[ML^(2)][T^(-1)]=[ML^(2)T^(-1)]`
Therefore the Plank constant has same dimension of angular momentum.