1.

The flux of a alpha-particle at 2^@ is 1 x 10°, calculate the flux of alpha- particle at angle 60^(@).

Answer»

0.5
0.75
1.5
1.2

Solution :`N_(PHI) alpha (1)/(sin^(4) ""theta/2)`
`(N_(60))/(N_(2))=(sin^(4) 1^(@))/(sin^(4) 30^(@))=1.50 XX 10^(-6)`
`N_(60)=N_(2) xx 1.5 xx 10^(-6)`
`N_(60)=1.5`


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