Question

One eV (electron volt) of nuclear energy is equivalent of:

(a) 1.6 × 10⁻¹⁴ J
(b) 1.6 × 10⁻¹² J
(c) 1.6 × 10⁻¹⁹ J
(d) 1.6 × 10⁻¹³ J

Answer 1

1.6 × 10⁻¹⁹ J

It is the amount of energy acquired by an electron having a charge of 1.6 × 10⁻¹⁹ C when accelerated through a potential difference of 1 volt.