The Time of Flight (TOF) Technique Is Routinely Used to Distinguish

question 41

Multiple Choice

The time of flight (TOF) technique is routinely used to distinguish between different particle species in a particle detector. Calculate the difference in time interval required for a proton (mass 938 MeV/c²) and a muon (mass 106 MeV/c²) to travel 2.5 m, assuming each particle has a momentum of 255 MeV/c.

• A) 8.3 ns
• B) 15 ns
• C) 23 ns
• D) 27 ns

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Definitions:

Random Assignment

A method used in experiments to assign subjects randomly to either the treatment or control group to eliminate bias.

Independent Variable

The factor in an experiment that is deliberately changed or manipulated to observe its effect on a dependent variable.

Equal Chance

A principle whereby each subject or experimental unit in a study has the same probability of being assigned to a particular group or condition.

Archival Research

Research methods involving the use of records or documents of the activities of individuals, groups, or organizations.