
Concept explainers
(a)
The length of each bundle in its own reference frame.
(a)

Explanation of Solution
Given:
In laboratory frame of reference length of each bundle is
Diameter of each bundle in laboratory frame of refence is
Each particle has energy of
Formula used:
Write expression for energy of beam.
Solve above expression for
Write expression for proper length.
Substitute
Calculation:
Substitute
Conclusion:
Thus, length of each bundle is
(b)
The minimum proper length of accelerator.
(b)

Explanation of Solution
Given:
In laboratory frame of reference length of each bundle is
Diameter of each bundle in laboratory frame of refence is
Each particle has energy of
Formula used:
Write expression for energy of beam.
Solve above expression for
Write expression for proper length.
Substitute
Write expression for proper length of accelerator.
Solve above expression for
Substitute
Calculation:
Substitute
Substitute
Conclusion:
Thus, the minimum proper length of accelerator is
(c)
The length of positron bundle which moves in the refence of electron bundle.
(c)

Explanation of Solution
Given:
In laboratory frame of reference length of each bundle is
Diameter of each bundle in laboratory frame of refence is
Each particle has energy of
Formula used:
Write expression for energy of beam.
Solve above expression for
Write expression for length of positron bundle.
Substitute
Calculation:
Substitute
Conclusion:
Thus, the length of positron is
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Chapter 39 Solutions
PHYSICS F/SCI.+ENGRS.,STAND.-W/ACCESS
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