If scattering particles are `56` for `90^(@)` angle than this will be at `60^(@)` angle

In Rutherford experiments on alpha -ray scattering the number of particles scattered at 90^(0) angle be 28 per minute. Then the number of particles scattered per minute by the same foil, but at 60^(0) is

In Rutherford experiments on alpha -ray scattering the number of particles scattered at 90^(0) angle be 28 per minute. Then the number of particles scattered per minute by the same foil, but at 60^(0) is

Can a triangle have two rght angles? two abtuse angles? two acute angles? all angles more than 60^(@) all angles less than 60^(@)? all angles to 60^(@) ?

Is it possible to have triangle,in which Two of the angles are right? Two of the angles are obtuse? Two of the angles are acute? Each angle is less than 60^(@)? Each angle is greater than 60^(@)? Each angle is equal to 60^(@)? Give reason in support of your answer in each case.

In an alpha -particle scattering experiment , 100 particles are scattered per minute at an angle of 60^@ . Calculate the number of particles per minute scattered at an angle of 30^@

In Rutherford scattering experiment, alpha -particles scattered at angle theta by a target, then which of the following is correct for Impact parameter "b" ?

Obtuse angle an angle whose measure is more than 90^(@) but less than 180^(@) is called an obtuse angle (Fig.11.27) .

If in Rutherford's experiment, the number of particles scattered at 90^(@) angle are 28 per min, then number of scattered particles at an angle 60^(@) and 120^(@) will be