which a `U^(238)` nucleus original at rest , decay by emitting an alpha particle having a speed `u` , the recoil speed of the residual nucleus is
which a `U^(238)` nucleus original at rest , decay by emitting an alpha particle having a speed `u` , the recoil speed of the residual nucleus is
A. `(4u)/(238)`
B. `-(4u)/(234)`
C. `(4u)/(234)`
D. `-(4u)/(238)`
5 views
1 Answers
Correct Answer - C
`U^(238) rarr U^(234)+._(2)He^(4)`
Let recoil speed be V then by COLM
`234 V=4uimplies V=(4u)/234`
5 views
Answered