Question

Planck's constant has the same dimensions as
(a) force × time
(b) force × distance
(c) force × speed
(d) force × distance time

Answer 1

(d) force × distance time

Planck's constant,
h = $\frac{E}{v}=\frac{\mathrm{Force}\times \mathrm{distance}}{\mathrm{frequency}}$
$\Rightarrow$ h = force $\times$ distance time