MCQ
Speed of electromagnetic waves in vacuum is:
  • $3 \times 10^8 m / s$
  • B
    $3 \times 10^7 m / s$
  • C
    $3 \times 10^6 m / s$
  • D
    $3 \times 10^10 m / s$

Answer

Correct option: A.
$3 \times 10^8 m / s$
(a)$3 \times 10^8 m / s$

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