Specific charges of two particles A and B are in the ratio 2:3. If the mass ratio, mA : mB is 2:3, t — Atomic Structure Chemistry Question
Question
Specific charges of two particles A and B are in the ratio 2:3. If the mass ratio, mA : mB is 2:3, then the ratio of their charges, eA : eB, is
Answer: B
💡 Solution & Explanation
Specific charge is (e/m). (eA/mA) / (eB/mB) = 2/3 => (eA/eB) × (mB/mA) = 2/3. Since mA/mB = 2/3, mB/mA = 3/2. So (eA/eB) × (3/2) = 2/3 => eA/eB = (2/3) × (2/3) = 4/9.
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