question_answer

Statement -1 :

A nucleus having energy  decays by emission to daughter nucleus having energy  but the rays are emitted with a continuous energy spectrum having end point energy

Statement - 2:

To conserve energy and momentum in p-decay at least three particles must take part in the transformation.            [AIEEE 11-05-2011]

A) Statement-1 is correct but statement-2 is not correct.

B) Statement-1 and Statement-2 both are correct and stateemnt-2 is the correct explanation of statement-1.

C) Statement-1 is correct, Statement-2 is correct and Statement-2 is not the correct explanation of Statement-1

D) Statement-1 is incorrect, Statement-2 is correct.

Correct Answer: B

Solution :

[b] Statement 1: Energy of p" particle from 0 to maximum so  is the continuous energy spectrum.

Statement 2 : For energy conservation and momentum at least three particles daughter nucleus +p 1 and antineutron.