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QJEEM19Phc0be: JEE Main 2019 Physics - Class 11 JEEM19Phc0be Solution: A long cylindrical vessel is half filled with a liquid. When…

A long cylindrical vessel is half filled with a liquid. When the vessel is rotated about its own vertical axis, the liquid rises up near the wall. If the radius of vessel is 5 cm and its rotational speed is 2 rotations per second, then the difference in the heights between the centre and the sides, in cm, will be :

Multiple Choice Options

  • A 2
  • B 1.2
  • C 0.1
  • D 0.4

Step-by-Step Verified Solution

JEE Main 2019 (Online) 12th January Evening Slot Physics - Properties of Matter Question 220 English Explanation

y = ω2x22g{{{\omega ^2}{x^2}} \over {2g}} = (2×2π)2×(0.05)220{{{{\left( {2 \times 2\pi } \right)}^2} \times {{\left( {0.05} \right)}^2}} \over {20}} ≃\simeq 2 cm

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