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#piston area

4 public questions tagged with this topic.

Viscosity, Stokes' Law and Reynolds Number

A hydraulic press applies 50N on a piston of area 0.02m2. What force is exerted by a piston of area 0.1m2?

Pressure transmitted: P = F1A1 = F2A2. F2 = F1×A2A1. F1 = 50N, A1 = 0.02m2, A2 = 0.1m2. F2 = 50×0.10.02 = 50×5 = 250N. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 250 N. This satisfies dimensional consistency and physical conditions given, so option C is scientifically correct.

Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.

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Viscosity, Stokes' Law and Reynolds Number

A hydraulic press applies 350N on a small piston of area 0.025m2. What force is exerted by a large piston of area 0.1m2?

Pascal’s law: P = F1A1 = F2A2. F2 = F1×A2A1. F1 = 350N, A1 = 0.025m2, A2 = 0.1m2. F2 = 350×0.10.025 = 350×4 = 1400N. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 1400 N. This satisfies dimensional consistency and physical conditions given, so option C is scientifically correct.

Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.

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Viscosity, Stokes' Law and Reynolds Number

A hydraulic press applies 250N on a small piston of area 0.02m2. What force is exerted by a large piston of area 0.08m2?

Pascal’s law: P = F1A1 = F2A2. F2 = F1×A2A1. F1 = 250N, A1 = 0.02m2, A2 = 0.08m2. F2 = 250×0.080.02 = 250×4 = 1000N. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 1000 N. This satisfies dimensional consistency and physical conditions given, so option C is scientifically correct.

Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.

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Fluid Pressure, Pascal's Law and Manometers

A hydraulic press applies 200N on a small piston of area 0.01m2. What force is exerted by a large piston of area 0.04m2?

Pascal’s law: P = F1A1 = F2A2. F2 = F1×A2A1. F1 = 200N, A1 = 0.01m2, A2 = 0.04m2. F2 = 200×0.040.01 = 200×4 = 800N. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 800 N. This satisfies dimensional consistency and physical conditions given, so option C is scientifically correct.

Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.

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