**Plancks Constant Times Speed Of Light**. I.e., planck's constant times the frequency, which is the energy of the photon, is sufficient to overcome the work function of the material, and the liberated electrons. The planck constant is found to be equal to 6.63×10−34j ⋅s 6.63 × 10 − 34 j ⋅ s.

Can u (speed of a. Why string theory is hard to test. Write the si units of given physical quantities the si unit of h =j.s or n.m.s si unit of c =m/s s.i unit of g= kg 2n.m 2 step 2: