Question

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

• A. $0.06$
• B. $0.006$
• C. $6$
• D. $0.6$

Answer 1

The correct option is A $0.06$

The energy in electron volt is given as :
$1\text{eV}$$=1.6\times {10}^{-19}\text{J}$

The energy required to break the DNA bond is ${10}^{-20}$


So energy in terms of $\text{eV}$ will be

${10}^{-20}\text{J}=\frac{{10}^{-20}}{1.6\times {10}^{-19}}\text{eV}$
$=0.06\text{eV}$