Correction of the First Exercise about Relativity

Publié par Marieclaired Entreprise


EXERCISE ON RESTRICTED RELATIVITY

States
The study of an electron in a cathode ray tube of an old model of television set showed that the coefficient γ associated with it in a terrestrial frame of reference supposed to be Galilean is equal to 1.05.
1) - Express the value v of the speed of movement of the electron in this terrestrial frame of reference.
2) - Calculate its value.
- The coefficient γ is given by the relation:

 

Responses
Expression of the value v of the speed of movement of the electron in this terrestrial frame of reference.
- System studied: the electron
- Terrestrial repository (R)
- Reference frame linked to the electron (R ’)
-     Diagram :

 

 

 

 

 
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