Electromagnetic radiations propagate in vacuum with a velocity of ____ – McqOptions

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1.	Electromagnetic radiations propagate in vacuum with a velocity of _______________ metre/second?
A.	3 × 10⁵
B.	3 × 10⁸
C.	3 × 10¹⁰
D.	3 × 10¹²
Answer» C. 3 × 10¹⁰

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