Q. When fluids are heated from the bottom, convection currents are produced because
A) Molecular motion of fluid becomes aligned
B) Molecular collisions take place within the fluid
C) Heated fluid becomes more dense than the cold fluid above it
D) Heated fluid becomes less dense than the cold fluid above it
Explanation
The correct answer is Option D: Heated fluid becomes less dense than the cold fluid above it.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.