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Physics MCQs

11 Questions
Subject Preparation Guide

Prepare Physics with confidence

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

MechanicsWavesElectricityModern Physics
Recommended for board classes, entry tests and science-related recruitment examinations.
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1
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Gamma rays are a form of:

  • A High-energy electromagnetic radiation
  • B Particle radiation
  • C Matter waves
  • D Sound waves
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What is the SI unit of magnetic flux?

  • A Henry
  • B Gauss
  • C Tesla
  • D Weber
3
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The law of conservation of energy states that energy:

  • A Can neither be created nor destroyed, only transformed
  • B Is always constant in every process
  • C Can be destroyed but not created
  • D Can be created but not destroyed
4
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What is the main function of a transformer's core?

  • A To generate voltage
  • B To store electrical energy
  • C To resist current flow
  • D To provide a path for magnetic flux
5
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A magnetic field is produced around a conductor when it carries:

  • A Static charge only
  • B Voltage only
  • C Resistance
  • D Electric current
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The SI unit of electric current is:

  • A Volt
  • B Ohm
  • C Ampere
  • D Coulomb
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A transformer works on the principle of:

  • A Electromagnetic induction
  • B Electrostatic attraction
  • C Thermal conduction
  • D Chemical reaction
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Which device is used to step up or step down alternating voltage in power transmission?

  • A Generator
  • B Motor
  • C Rectifier
  • D Transformer
9
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The gravitational force between two objects increases when:

  • A Distance between them increases
  • B Distance between them decreases
  • C Mass of both objects decreases
  • D Distance and mass both decrease
10
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The freezing point of water on the Celsius scale is:

  • A 0 degrees
  • B 273 degrees
  • C 100 degrees
  • D 32 degrees
11
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Which particle carries a negative electric charge?

  • A Positron
  • B Electron
  • C Neutron
  • D Proton