Momentum and CollisionHard
Question
An alpha particle collides elastically with a stationary nucleus and continues to move at an angle of 60o with respect to its original direction of motion. The nucleus recoils at an angle of 30o with respect to this direction. Mass number of the nucleus is :-
Options
A.2
B.4
C.6
D.8
Solution
4u = 2v1 + 
v2m
4
v1 = 
& v2 = 
(By balancing momentum perpendicular direction)
v2m4
v1 = & v2 = (By balancing momentum perpendicular direction)Create a free account to view solution
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