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MHT CET202211 Aug 2022Morning ShiftPhysicsMechanical Properties of FluidsActual

The work done in blowing a soap bubble of radius R is W₁ and that of radius 2 R is W₂ . The ratio of W₁ to W₂ is

Options

  1. A1:4
  2. B4:1
  3. C2:1
  4. D1:2

Correct answer

A. 1:4

Step-by-step solution

aligned & W₁=2 [4 r^2 T ] & W₂=2 [4 (2 r)^2 T ] & W₁ W₂ = 1 4 aligned

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