Q. Which of the following relations is dimensionally correct ?

2173 242 Physical World, Units and Measurements Report Error

A

$1 u = 931.5 M e V$

7%

B

$1 u = 931.5 M e V / c^{2}$

38%

C

$1 u = 1.67 \times 1 0^{- 27} J$

34%

D

None of these

21%

Solution:

$1 u = 931.5 M e V / c^{2}$