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JEE Advanced 2008Paper 1
Exam
JEE Advanced
Year
2008
Paper
Paper 1
Subject
Physics
Chapter
Mechanical Properties of Fluids

JEE Advanced 2008 · Paper 1 · Physics · Mechanical Properties of Fluids

Paragraph: A small spherical monoatomic ideal gas bubble...

Paragraph: A small spherical monoatomic ideal gas bubble (γ=53)\left(\gamma=\frac{5}{3}\right) is trapped inside a liquid of density ρ1\rho_1 (see figure). Assume that the bubble does not exchange any heat with the liquid. The bubble contains nn moles of gas. The temperature of the gas when the bubble is at the bottom is T0T_0, the height of the liquid is HH and the atmospheric pressure is p0p_0 (Neglect surface tension).Paragraph: A small spherical monoatomic ideal gas bubble (γ=(5)/(3)) is trapped inside a liquid of density _1 (see
Question: As the bubble moves upwards, besides the buoyancy force the following forces are acting on it.

Options

  1. AOnly the force of gravity
  2. BThe force due to gravity and the force due to pressure of the liquid
  3. CThe force due to gravity, the force due to the pressure of the liquid and the force due to viscosity of the liquid
  4. DThe force due to gravity and the force due to viscosity of the liquid

Correct answer

D. The force due to gravity and the force due to viscosity of the liquid

Step-by-step solution

As the bubble moves upwards, besides the buoyancy force (cause of which is pressure difference) only force of gravity and force of viscosity will act. ∴\therefore correct option is (d).
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