Question

In Rutherford scattering experiment, what will be the correct angle for α scattering for an impact parameter b = 0(a) 90°
(b) 270°
(c) 0°
(d) 180°

Answer 1

In Rutherford scattering experiment
His second parameter was that
SOME OF THE A-PARICLES APPEARED TO BE DEFLECTED BY SMALL ANGLES....
And since they are not completely rebound so 180 can't be possible.
0 can't be possible because they have been deflected
If 180 isn't possible the no chance for 270.

So a) 90 is your ans....

HOPE IT HELPS.....

Answer 2

so, ans is (d) 180. hope it helps