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for given impact parameter b, does the a...

for given impact parameter b, does the angle of deflection increase or decrease with increase in energy?

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form `b=1/(4pi in_0) (Ze^2 cot theta//2)/E`
for given value of b, when E is increased, `cot.(theta)/(2)`
increases, `tan.(theta)/(2)` decreases, `theta` decreases.
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