Question

plamk constant has the same dimension as

Answer 1

force×distance×time is the answer

Answer 2

The dimension of Plank's contant can be obtained from any of the equations in which it appears, e.g. h = E/ν, λ = h/p, etc.

Planck's Constant h = 6.626176 x 10-34 joule-second
= 6.626176 x 10-34 m2 kg/s
[h] = [M L2 T −1] _____________(1)

Angular momentum l = r x p

[l] = [r] [p]
= [L] [M L T −1]
= [M L2 T −1] _____________(2)

Compare Eqs. (1) and (2). See that both the Planck's constant and angular momentum have the same dimensions.
Hope it helps ...