Question:medium

An experiment was carried out twice using magnetic deflection type mass-spectrometer to estimate a certain molecule present in the compound under test. In the first test, the sample was excited and the potential difference between the accelerating plate was kept at 1000 V and in the second case, the potential difference was at 10000 V. Determine the ratio of the radius of curvature of the circular path travelled by the ions when they pass through the magnetic field oriented right angle to their motion in the test to that of the second

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Remember the direct proportionality $R \propto \sqrt{V}$ in magnetic deflection mass spectrometers.
If the voltage increases by a factor of $k$, the radius of the path increases by a factor of $\sqrt{k}$.
This allows rapid computation without recalling the entire derivation.
Updated On: Jul 6, 2026
  • $1/\sqrt{10}$
  • $1/10$
  • $\sqrt{10}$
  • $10$
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The Correct Option is A

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