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JEE Main20253 Apr 2025Evening ShiftPhysicsMagnetic Effects of CurrentActual

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R . Assertion A: . If oxygen ion ( O ⁻² ) and Hydrogen ion ( H ⁺ ) enter normal to the magnetic field with equal momentum, then the path of O ⁻² ion has a smaller curvature than that of H ⁺ . Reason R : A proton with same linear momentum as an electron will form a path of smaller radius of curvature on entering a unifor

Options

  1. AA is true but R is false.
  2. BBoth A and R are true but R is NOT the correct explanation of A .
  3. CA is false but R is true.
  4. DBoth A and R are true and R is the correct explanation of A .

Correct answer

A. A is true but R is false.

Step-by-step solution

aligned & r= m v q B = p q B & r 1 q aligned Assertion is true reason is false

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