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Question

The energy required to break one bond in DNA is $10^{- 20} J$ . This value in eV is nearly :

Easy

Solution

$\begin{array}{l} 1 eV = 1 .6 \times 10^{- 19} J \\ Then 10^{- 20} J is equal to = \frac{10^{- 20}}{1 .6 \times 10^{- 19} ev} \\ = 0 .06 ev \end{array}$

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