The Destruction of Jericho The Bible describes the Exodus
as a period of 40 years that began with plagues in Egypt
and ended with the destruction of Jericho. Archeologists
seeking to establish the exact dates of these events have
proposed that the plagues coincided with a huge eruption
of the volcano Thera in the Aegean Sea.
a. Radiocarbon dating suggests that the eruption occurred
around 1360 bce, though other records place the
eruption of Thera in the year 1628 bce. What is the
percent difference in the 14C decay rate in biological
samples from these two dates?
k = ln2 / half-life.
The half life of carbon is 5730 years.
So k = ln2/5730 yr = 1.2097 × 10-4 yr-1
Now, substitute the values the formula. we will get
14C2007AD/14C1315 BC = e-(1.2097 ×10-4)(3322)
14C2007AD/14C1315 BC = 0.6690728
So the ratio of 14C in comparison of 2007 AD to that of 1315 BC = 0.6690728