Alpha Particle Closest Approach (Jee Mains) | ExamDuo
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Gravitational Force & Field
Medium
Alpha Particle Closest Approach
If an alpha particle with energy 7.7 MeV is bombarded on a thin gold foil, the closest distance from nucleus it can reach is ________ m.
(Atomic number of gold = 79 and
= 9 × 10
9
in SI units)
SELECT ONE OPTION
A
2.95 × 10
–14
B
2.95 × 10
–16
C
3.85 × 10
–16
D
3.85 × 10
–14
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= 9 × 109 in SI units)