Which of the following modes of motion is exhibited by the particles of a solid?
-
A.
Vibrational and random motion -
B.
Vibrational and translational motion -
C.
Translational and random motion -
D.
Vibrational motion only -
E.
Translational motion only
Correct Answer: Option D
Explanation
The cohesive forces binding the particles of a solid are strong enough to restrict their movement so that they are held together in a fixed point. They only vibrate and rotate about their fixed point.