A nucleus with mass number 220 initially at rest emits an alpha particle. If the value of reaction is
, calculate the value of kinetic energy of alpha particle.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Given :
Mass number of the nucleus
Mass number of an -particle,
units
Mass number of daughter nucleus
where (K.E) is the kinetic energy of the
-particle and (K.E)
is the kinetic energy of the daughter nuclei.
If and
denote momenta of the
-particle and daughter nucleus respectively, then from eqn (i), we have
Since, momentum is conserved, thus
or
or
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