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JEE Main 20199 AprilMorning Shift
Exam
JEE Main
Year
2019
Date
9 April
Shift
Morning Shift
Subject
Physics
Chapter
Mechanical Properties of Fluids

JEE Main 2019 · 9 April · Morning Shift · Physics · Mechanical Properties of Fluids

If 'M' is the mass of water that rises in a capillary tube of...

If ′M′'M' is the mass of water that rises in a capillary tube of radius ′r′'r' , then mass of water which will rise in a capillary tube of radius ′2r′'2r' is:

Options

  1. A4M4M
  2. B2M2M
  3. CM2\dfrac{M}{2}
  4. DMM

Correct answer

B. 2M2M

Step-by-step solution

Mass of liquid rising in tube =ρAh= ρAh
m=ρπr2(2Tcosθρgr)m = ρ\pi{r}^{2}\left(\dfrac{2Tcos \theta}{ρgr}\right)
m∝rm ∝ r
Mass of liquid rise in tube will become 2M2M
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