In gold foil experiment number of deflected α - particles at angle 90^o is 63 than number of α - p

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12.Atoms

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In gold foil experiment number of deflected $\alpha -$ particles at angle $90^o$ is $63$ than number of $\alpha -$ particle deflected at $120^o$ is

A

$112$

B

$42$

C

$56$

D

$28$

Solution

$\mu \,\propto \,\frac{1}{{{{\left( {\sin \frac{\theta }{2}} \right)}^4}}}$

Standard 12

Physics

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