Many candidates could not give the correct statement neither could they reproduce planks constant.
The expected answers are:
(a) It is impossible to determine (accurately) both the wave properties of matter and its particulate properties at the same time OR In any simultaneous determination of the position x and momentum p of a particle, there.
is an uncertainty in its position L\ x and an uncertainty in its momentum ∆p.
  (b)       1)  ORh
                      2π