How many will be scattered between given angels

Reference no: EM13246246

When a-particles with energy of 5MeV are scattered on a thin gold foil, it is found that 10,000 a-particles are scattered at an angle greater than 50o.

(a) How many a-particles are scattered at an angle greater than 90o ?

(b) How many will be scattered between 70o and 80o ?

Reference no: EM13246246

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