Question

Photon is quantum of radiation with energy E = hν where ν is frequency and h is Planck’s constant. The dimensions of h are the same as that of
(a) Linear impulse
(b) Angular impulse
(c) Linear momentum
(d) Angular momentum

Answer 1

E = h v  where v = frequency
h = E / v  = E * T    where T is time period..
 h = Force * displacement * Time

Linear impulse:         Force * time duration
angular impulse:        torque * time duration = force * length * time duration
                             = energy * time
linear momentum:      mass * velocity :  force * time
angular momentum:    mass * velocity * length = Force * time * length
                       = energy * time


answer  b  and  d..