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JEE Advanced 2007Paper 1
Exam
JEE Advanced
Year
2007
Paper
Paper 1
Subject
Physics
Chapter
Thermodynamics

JEE Advanced 2007 · Paper 1 · Physics · Thermodynamics

Paragraph: P_ 14-16 : Paragraph for Questions Nos. 14 to 16 A fixed...

Paragraph: P14−16P_{14-16} : Paragraph for Questions Nos. 14 to 16 A fixed thermally conducting cylinder has a radius RR and height L0L_0. The cylinder is open at its bottom and has a small hole at its top. A piston of mass MM is held at a distance LL from the top surface as shown in the figure. The atmospheric pressure is p0p_0.Paragraph: P_ 14-16 : Paragraph for Questions Nos. 14 to 16 A fixed thermally conducting cylinder has a radius R and
Question: The piston is now pulled out slowly and held at a distance 2L2 L from the top. The pressure in the cylinder between its top and the piston will then be

Options

  1. Ap0p_0
  2. Bp02\frac{p_0}{2}
  3. Cp02+MgπR2\frac{p_0}{2}+\frac{M g}{\pi R^2}
  4. Dp02−MgπR2\frac{p_0}{2}-\frac{M g}{\pi R^2}

Correct answer

A. p0p_0

Step-by-step solution

Since it is open from top, pressure will be p0p_0. ∴\therefore Option (a) is correct.
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