Question

which of the following physical variables cannot be measured simultaneously without any uncertainty
a) energy and momentum
b) angular momentum and rotational energy
c) position and momentum
d) velocity and momentum
​

Answer 1

Answer:

uncertainty principle, also called Heisenberg uncertainty principle or indeterminacy principle, statement, articulated (1927) by the German physicist Werner Heisenberg, that the position and the velocity of an object cannot both be measured exactly, at the same time, even in theory.