A Mass Spectrometer Is Used to Separate Two Isotopes of Uranium

question 11

Multiple Choice

A mass spectrometer is used to separate two isotopes of uranium with masses m₁ and m₂ where m₂ > m₁. The two types of uranium atom exit an ion source S with the same charge of +e and are accelerated through a potential difference V. The charged atoms then enter a constant, uniform magnetic field B as shown. If r₁ = 0.5049 m and r₂ = 0.5081 m, what is the value of the ratio m₁/m₂?

• A)0.9984
• B)0.9937
• C)0.9874
• D)0.9812
• E)0.9749

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