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JEE MAIN 2019
12-01-2019 S2
Question
An alpha-particle of mass m suffers 1-dimensional elastic collision with a nucleus at rest of unknown mass. It is scattered directly backwards losing, 64% of its initial kinetic energy. The mass of the nucleus is:
Select the correct option:
A
1.5 m
B
3.5 m
C
4 m
D
2 m
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
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Physics
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