A Mass Spectrograph Is Operated with Deuterons, Which Have a Charge

question 26

Multiple Choice

A mass spectrograph is operated with deuterons, which have a charge of +e and a mass of
3.34 × 10^-27 kg. Deuterons emerge from the source, which is grounded with negligible velocity. The velocity of the deuterons as they pass through the accelerator grid is 8.0 × 10⁵ m/s. A uniform magnetic field of magnitude B = 0.20 T, directed out of the plane, is present at the right of the grid.
-In the figure,the deuterons are in circular orbit in the magnetic field.The radius of the orbit and the initial sense of deflection are closest to:

• A)60 mm,upward
• B)70 mm,upward
• C)60 mm,downward
• D)70 mm,downward
• E)80 mm,downward

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Definitions:

Quarterly Time Series

Data collected, distributed, or analyzed at intervals of three months, often used to identify trends over time.

Residual Plot

A graphical representation where residuals (differences between observed and predicted values) of a regression analysis are plotted against predicted values to assess the fit of a model.

Trend Model

A statistical model that attempts to capture underlying patterns or trends in a dataset.

Annual Time-Series

A sequence of data points recorded or measured at successive time intervals, each interval being one year, used to analyze trends over time.