CUET · PHYSICS · PYQ PAPER 2023
The atomic mass unit (1u) is correctly represented by :
- A \(1u = 1.67 \times 10^{-27} \text{ J/C}^2 \)
- B \( 1u = 931.5 \text{ MeV}/c^2 \)
- C \(1u = 931.5 \text{ J/C}^2 \)
- D \(1u = 9.31 \text{ MeV/C}^2 \)
Answer & Solution
Correct Answer
(B) \( 1u = 931.5 \text{ MeV}/c^2 \)
Step-by-step Solution
Detailed explanation
Based on Einstein's mass-energy equivalence \(\left(E=m c^2\right)\), mass can be expressed in terms of energy. Since the energy equivalent of one atomic mass unit is approximately \(9 3 1 . 5 ~ M e V\), its mass value is correctly represented as \(931.5 MeV / c^2\). B)…
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