Proper mean life time of π⁺ mesons travelling with velocity 0.8c is 2.4 × 10⁻⁸…
PYQ UPPSC LT Grade (Assistant Teacher) 2025
Proper mean life time of π⁺ mesons travelling with velocity 0.8c is 2.4 × 10⁻⁸ second. Its apparent mean life time is:
- A.
4.00 × 10⁻⁸ minute
- B.
4.00 × 10⁻⁸ second
- C.
1.44 × 10⁻⁸ minute
- D.
1.44 × 10⁻⁸ second
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