College Physics
Solutions
College Physics
A mass spectrometer is used to examine the isotopes of uranium. Ions in the beam emerge from the velocity selector at a speed of 3.00 × 105 m/s and enter a uniform magnetic field of 0.600 T directed perpendicularly to the velocity of the ions. What is the distance between the impact points formed on the photographic plate by singly charged ions of 235U and 238U?
Given info: The ions in the beam emerge from the velocity selector at a speed of
Explanation:
From the velocity selector particle only with velocity
In the deflection chamber the centripetal force is supplied by the magnetic field.
Hence,
Re-arranging for the radius,
The distance between the impact points will be the difference between the diameters of the circular path followed by the isotopes
Combining (1) and (2),
Mass of
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