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Heat and Thermodynamics question

2007 · Shift 1 · Q59

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JEE Advanced
Physics
Heat and Thermodynamics
2007 · Shift 1 · Q59

Heat and Thermodynamics question

2007 · Shift 1 · Q59

JEE AdvancedPhysicsHeat and ThermodynamicsMCQ+3 / −1

A fixed thermally conducting cylinder has a radius

R

and height

L_0

. The cylinder is open at its bottom and has a small hole at its top. A piston of mass

M

is held at a distance

L

from the top surface, as shown in the figure. The atmospheric pressure is

P_0

.

IIT-JEE 2007 Paper 1 Offline Physics - Heat and Thermodynamics Question 19 English Comprehension

The piston is now pulled out slowly and held at a distance 2L from the top. The pressure in the cylinder between its top and the piston will then be

A
P $_0$
B
${{{P_0}} \over 2}$
C
${{{P_0}} \over 2} + {{Mg} \over {\pi {R^2}}}$
D
${{{P_0}} \over 2} - {{Mg} \over {\pi {R^2}}}$

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