NEET Physics Earth's Magnetism Assertion Reason Question
Assertion (A): At the magnetic poles, a compass needle aligns vertically.
Reason (R): The horizontal component of Earth's magnetic field is zero at the magnetic poles.
Both A and R are true and R explains A.
Both A and R are true but R does not explain A.
A is true but R is false.
A is false.
Correct Answer
Detailed Explanation
At the magnetic poles, magnetic field lines converge, making the horizontal component zero, causing the compass needle to align vertically.
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