Question

Planck’* constant has the dimensions of
(A) linear momentum
(B) angular momentum
(C) energy
(D) power

Answer 1

The answer is (B) angular momentum

Angular momentum (L) = moment of momentum

∴ [L] = [MLT-1] x [L]

= [ML2T-1]

∴ Dimension of Plank'* constant is that of angular momentum