শূন্যস্থানে আলোর বেগ নিম্নের কোনটি ?

A $(3.9986\pm 0.003)\times 10^{8} m/sec$

B $(2.9986\pm 0.003)\times 10^{8} m/sec$

C $(3.9986\pm 0.003)\times 10^{6} m/sec$

D $(2.9986\pm 0.003)\times 10^{6} m/sec$

Solution

Correct Answer: Option B

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