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FPSC MCQs

Federal Public Service Commission — Complete MCQ Bank

1,461 Questions
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FPSC recruitment tests assess subject knowledge, general ability and job-related competence for federal government positions across Pakistan.

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381
Physics Easy

What is the SI unit of energy?

  • AJoule
  • BWatt
  • CNewton
  • DPascal
Permalink
Correct Answer: Option A — Joule
Explanation: The Joule is the SI unit of energy defined as the work done when a force of one Newton moves an object one metre in the direction of the force.
Submitted by: PaperMCQs
382
Physics Medium

Which law states that the current through a conductor is directly proportional to the voltage across it?

  • AFaraday's Law
  • BOhm's Law
  • CKirchhoff's Law
  • DCoulomb's Law
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Correct Answer: Option B — Ohm's Law
Explanation: Ohm's Law states that the current I through a conductor is directly proportional to the voltage V across it at constant temperature expressed as V equals IR.
Submitted by: PaperMCQs
383
Physics Easy

What is the unit of electrical resistance?

  • AVolt
  • BAmpere
  • CWatt
  • DOhm
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Correct Answer: Option D — Ohm
Explanation: The Ohm named after German physicist Georg Simon Ohm is the SI unit of electrical resistance defined as the resistance that produces a potential difference of one volt per ampere.
Submitted by: PaperMCQs
384
Physics Easy

Which physical quantity is defined as force per unit area?

  • ADensity
  • BPressure
  • CStress
  • DTorque
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Correct Answer: Option B — Pressure
Explanation: Pressure is defined as force per unit area measured in Pascals in the SI system and applies to fluids and gases exerting force on surfaces equally in all directions.
Submitted by: PaperMCQs
385
Physics Medium

What is the approximate speed of sound in air at room temperature?

  • A343 m/s
  • B150 m/s
  • C1500 m/s
  • D3000 m/s
Permalink
Correct Answer: Option A — 343 m/s
Explanation: Sound travels at approximately 343 metres per second in air at room temperature of about 20 degrees Celsius and this speed increases with temperature.
Submitted by: PaperMCQs
386
Physics Medium

Which type of wave does not require a medium to travel?

  • ASound wave
  • BWater wave
  • CSeismic wave
  • DElectromagnetic wave
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Correct Answer: Option D — Electromagnetic wave
Explanation: Electromagnetic waves such as light radio waves and X-rays can travel through a vacuum without requiring a medium distinguishing them from mechanical waves like sound.
Submitted by: PaperMCQs
387
Physics Easy

What is the SI unit of electric current?

  • AVolt
  • BOhm
  • CAmpere
  • DWatt
Permalink
Correct Answer: Option C — Ampere
Explanation: The Ampere named after French physicist Andre-Marie Ampere is the SI base unit of electric current representing the flow of one coulomb of charge per second.
Submitted by: PaperMCQs
388
Physics Easy

Which law states that every action has an equal and opposite reaction?

  • ANewton's First Law
  • BNewton's Second Law
  • CNewton's Third Law
  • DLaw of Gravitation
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Correct Answer: Option C — Newton's Third Law
Explanation: Newton's Third Law states that for every action there is an equal and opposite reaction meaning forces always occur in pairs acting on different objects.
Submitted by: PaperMCQs
389
Physics Easy

What is the SI unit of force?

  • AWatt
  • BJoule
  • CPascal
  • DNewton
Permalink
Correct Answer: Option D — Newton
Explanation: The Newton named after Isaac Newton is the SI unit of force defined as the force needed to accelerate a mass of one kilogram at one metre per second squared.
Submitted by: PaperMCQs
390
Physics Easy

Which scientist is known as the Father of Physics?

  • AIsaac Newton
  • BAlbert Einstein
  • CGalileo Galilei
  • DArchimedes
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Correct Answer: Option C — Galileo Galilei
Explanation: Galileo Galilei is widely regarded as the Father of Physics for his pioneering experimental approach to the study of motion mechanics and astronomy in the 16th and 17th centuries.
Submitted by: PaperMCQs
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