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alpha- particles deflected at more than ...

`alpha`- particles deflected at more than `90^(@)` in Marsdon experiment were

A

1 in 1000

B

1 in 10000

C

1 in 100000

D

1 in 8000

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The correct Answer is:
D
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What was the fraction of alpha -particles in which deflection of more than 90^@ was observed ?

Number of the alpha - particle deflected in Rutherford's alpha -scattering experiment varies with the angle of deflection. Then the graph between the two is best represented by.

What was the fraction of alpha -particles in which deflection of more than 1^@ was observed ?

Assertion : In Rutherford's alpha -particle scattering experiment, most of the alpha -particles were deflected by nearly 180^(@) . Reason : The positive charge of the atom is spread throughout the atom that repelled and deflected the positively charged alpha -particles.

In the Rutherford scattering experiment the number of alpha particles scattered at anangle theta = 60^(@) is 12 per min. The number of alpha particles per minute when scatterd at an angle of 90^(@) are

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