Q. Temperature of water at the surface of lake is $- 20℃$. Then temperature of water just below the lower surface of ice layer is

A) $- 4℃$
B) $0℃$
C) $4℃$
D) $- 20℃$
Explanation

(b) Temperature of water just below the lower surface of ice layer is $0℃$

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

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