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Physics MCQs

176 Questions
Subject Preparation Guide

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Practice core concepts of measurement, motion, force, energy, waves, electricity, magnetism and modern physics.

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Which instrument is used to detect and measure very small electric currents?

  • A Voltmeter
  • B Ohmmeter
  • C Ammeter
  • D Galvanometer
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What is the name of the quantum of electromagnetic radiation?

  • A Electron
  • B Neutron
  • C Proton
  • D Photon
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The SI unit of magnetic flux density is:

  • A Tesla
  • B Weber
  • C Farad
  • D Henry
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Medium fpsc ppsc nts Uploaded: 13 Jul 2026

What is the principle behind a periscope?

  • A Reflection of light using two parallel mirrors
  • B Diffraction of light
  • C Refraction through lenses
  • D Polarisation of light
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What is the term for the minimum angle at which total internal reflection occurs?

  • A Angle of incidence
  • B Critical angle
  • C Angle of refraction
  • D Angle of reflection
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The amplitude of a wave determines its:

  • A Pitch
  • B Speed
  • C Loudness or intensity
  • D Wavelength
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A transistor is primarily used for:

  • A Storing charge
  • B Generating light
  • C Measuring temperature
  • D Amplification and switching
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Easy fpsc ppsc nts Uploaded: 13 Jul 2026

What is the acceleration due to gravity at the surface of the Earth?

  • A 8.9 m/s squared
  • B 10.8 m/s squared
  • C 9.8 m/s squared
  • D 7.8 m/s squared
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Easy fpsc Uploaded: 17 Aug 2026

When resistors are connected in parallel, the total resistance:

  • A Increases
  • B Becomes infinite
  • C Remains the same as any one resistor
  • D Decreases below the smallest individual resistance
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What is the principle of conservation of momentum?

  • A Momentum increases with velocity only
  • B Total momentum of an isolated system remains constant
  • C Momentum equals mass times acceleration
  • D Momentum decreases with time
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Easy fpsc Uploaded: 17 Aug 2026

Which gas law states that pressure is inversely proportional to volume at constant temperature?

  • A Boyle's law
  • B Gay-Lussac's law
  • C Charles's law
  • D Avogadro's law
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Easy fpsc ppsc nts Uploaded: 13 Jul 2026

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

  • A Newton's First Law
  • B Newton's Second Law
  • C Newton's Third Law
  • D Law of Gravitation
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Which phenomenon describes the bending of light around a massive object predicted by general relativity?

  • A Gravitational lensing
  • B Refraction
  • C Diffraction
  • D Polarisation
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What is the terminal velocity of a falling object?

  • A Minimum speed during fall
  • B Speed at which object first starts moving
  • C Speed independent of mass
  • D Maximum speed reached when weight equals air resistance
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Which law relates the force between two electric charges to the distance between them?

  • A Ohm's Law
  • B Coulomb's Law
  • C Faraday's Law
  • D Ampere's Law
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What is absolute zero temperature in degrees Celsius?

  • A 0 degrees Celsius
  • B minus 100 degrees Celsius
  • C minus 273 degrees Celsius
  • D minus 373 degrees Celsius
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Medium css fpsc ppsc Uploaded: 13 Jul 2026

Which phenomenon occurs when light bends around the edges of an obstacle or aperture?

  • A Refraction
  • B Reflection
  • C Diffraction
  • D Dispersion
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Easy fpsc Uploaded: 17 Aug 2026

The power of a convex lens is considered:

  • A Undefined
  • B Zero
  • C Positive
  • D Negative
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Medium css fpsc ppsc Uploaded: 13 Jul 2026

Which type of radiation has the highest penetrating power?

  • A Alpha radiation
  • B Gamma radiation
  • C Beta radiation
  • D Neutron radiation
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What is the term for the maximum displacement of a wave from its rest position?

  • A Wavelength
  • B Frequency
  • C Amplitude
  • D Period