Question:
Which of the following systems may be adequately described by classical physics?
(a) motion of a cricket ball
(b) motion of a dust particle
(c) a hydrogen atom
(d) a neutron changing to a proton
Solution:
Classical physics is used generally for heavenly bodies and do not work for smaller size particle. Thus motion od cricket ball, motion of dust particles is adequately described by classical physics. (a), (b)