A. 1.00 x 107s
B. 6.93 x 106s
C. 1.00 x 10-7s
D. 6.93 x 107s

Correct Answer:

Option B = 6.93 x 106s

Explanation

Average life / Half life (T½) = ln2/λ = 0.693/10-7
= 0.693 x 107
= 6.93 x 106

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