Which of the following measurements is incorrectly expressed?
A
2 pa
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B
15 newton
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C
9 m/s
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D
12 cm
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Solution
The correct option is A 2 pa While writing a unit named after a scientist we always use capital letters. For example, we write
a) 'N', not 'n' for newton
b) 'Pa', not 'pa' for pascal