Q. Potometer works on the principle of :
A) amount of water absorbed equals the amount transpired
B) osmotic pressure
C) root pressure
D) potential difference between the tip of the tube and that of the plant
Explanation
[Solution from source] A potometer measures how fast a cut shoot takes up water and assumes this equals the water lost by transpiration. It does not measure osmotic pressure or root pressure. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.