Question

Sulphur-35 (34-96903 amu) emits a β-particle but not y-ray. The product is chlorine-35 (34.96885 amu). The maximum energy emitted by the β-particle is

(a) 16.758 MeV

(b) 1.6758 MeV

(c) 0.16758 MeV

(d) 0.016758 MeV

Answer 1

Correct option is (c) 0.16758 MeV

Loss is mass (Mass converted into energy) = 34.96903 - 34.96885 = 0.00018 amu

\(\therefore\) Energy emitted = 0.00018 x 931 = 0.16758 MeV