A) \[9.0\times {{10}^{9}}\] years
B) \[13.5\times {{10}^{9}}\] years
C) \[4.5\times {{10}^{9}}\] years
D) \[4.5\times {{10}^{4.5}}\] years
Correct Answer: C
Solution :
Because \[{{t}_{1/2}}=4.5\times {{10}^{9}}\] years, so after \[4.5\times {{10}^{9}}\] years the amount of \[_{92}{{U}^{238}}\] will be half decayed.You need to login to perform this action.
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