Consider the following statements and state whether true or false: (i) Nuclear fission is normally followed by the emission of β - particles. (ii) Emission of α particle is normally followed by emission of γ rays. (iii) As the mass number A increases, the binding energy per nucleon in a nucleus also increases. Choose the correct order from the options given below.

Question

Consider the following statements and state whether true or false: (i) Nuclear fission is normally followed by the emission of β - particles. (ii) Emission of α particle is normally followed by emission of &gamma; rays. (iii) As the mass number A increases, the binding energy per nucleon in a nucleus also increases. Choose the correct order from the options given below. (A) T T T (B) T T F (C) F T T (D) T F T

Tardigrade Admin · Accepted Answer

(i) Nuclear fission results in fragments whose neutron/proton ratio is higher than the required value (N/P ratios is greater for heavier nuclei). To reduce the N/P ratio these fragments undergo

β -

decays in which a neutron is converted into a proton.
(ii) Some of the energy generated in

α -

emission goes into nuclear excitation. The excited nucleus returns to ground state by

γ -

emission.
(iii) the binding energy per nucleon in a nucleus varies in a way that depends on the actual value of

A