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As per your syllabus, the metre is defined so that the speed of light in vacuum equals which value?
A299 792 458 m/s
B3.00 × 10⁸ m/s only
C6.626 × 10⁻³⁴ m/s
D1.602 × 10⁻¹⁹ m/s
Answer & Solution
Correct answer: A. 299 792 458 m/s
syllabus Table 1.1: c = 299 792 458 m s⁻¹ exactly.
Definition of the metre is fixed via this constant.
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