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Option 2 : A & B

A physical phenomenon is a natural event involving matter and energy's physical characteristics.

  • Magnetic field lines are a visual representation of a magnetic field that helps in understanding the physical phenomena of magnetic force.
    • They are closed curves that specify the magnetic force direction on a north monopole at any given location.Theoretical construct is an explanatory idea that can be deduced from observed or measured facts but is not directly observable.

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