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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoKTGMedium2 minQB

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Passage / Comprehension

In the cylinder shown in the figure, air is enclosed under the piston. Piston mass M = 60 kg, cross-sectional area of the cylinder S₀ = 20 cm², atmospheric pressure P₀ = 10⁵ Pa. α = 37°. The air temperature is constant, the friction is negligible.

What is the mass of the goods that must be put on the piston so that the volume of the gas becomes halved?

Options:

Answer:

Solution:

$P^{'} V^{'} = P V \Rightarrow P^{'} = 2 P = 8 \times 1 0^{5} = P_{0} + \frac{( m + M ) g}{S _{0}}$ .

$7 \times 1 0^{5} \times 20 \times 1 0^{- 4} - 600 = M g \Rightarrow M = 80 kg .$

Stream:JEESubject:PhysicsTopic:Heat & ThermoSubtopic:KTG

⏱ 2mℹ️ Source: QB

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