Three liquids of densities ρ1, ρ2 and ρ3 (with ρ1>ρ2>ρ3, having the same value of surface tension T, rise to the same height in three identical capillaries. The angle of contact θ1,θ2 and θ3 obey :
see full answer
Your Exam Success, Personally Taken Care Of
1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya
a
π2<θ1<θ2<θ3<π
b
π>θ1>θ2>θ3>π2
c
π2>θ1>θ2>θ3≥0
d
0≤θ1<θ2<θ3<π2
answer is D.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
h=2Tcosθρgr⇒cosθρ= constant ρ1>ρ2>ρ3so cosθ1>cosθ2>cosθ3θ1<θ2<θ3Liquid rises so constants angles are acute.0<θ1<θ2<θ3<π/2
Three liquids of densities ρ1, ρ2 and ρ3 (with ρ1>ρ2>ρ3, having the same value of surface tension T, rise to the same height in three identical capillaries. The angle of contact θ1,θ2 and θ3 obey :