Q. The absolute zero is the temperature at which

A) Water freezes
B) All substances exist in solid state
C) Molecular motion ceases
D) None of the above
Explanation

(c) At absolute zero ($i.e.,\ 0\ K)v_{rms}$ becomes zero

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.