Answer :
Given,
1 gram remain out of 16 grams after 237 seconds.
So,
1g -> 2g -> 4g -> 8g -> 16g
So, 4 half lives have taken palce.
So,
we divide 237 by 4 and we get our answer.
So,
234 / 4 = 59.25 ≈ 59.3
So, the answer is (2) 59.3 seconds
1 gram remain out of 16 grams after 237 seconds.
So,
1g -> 2g -> 4g -> 8g -> 16g
So, 4 half lives have taken palce.
So,
we divide 237 by 4 and we get our answer.
So,
234 / 4 = 59.25 ≈ 59.3
So, the answer is (2) 59.3 seconds