1.

There are two radio nuclei A and B is a alpha -emitter and B is beta-emitter. Their disintegration constant are in the ratio of 1:2 . What should be the number of atoms ratio of A and B at time t=0 , so that initially probability of getting of alphaand beta-particles are same.

Answer»

`2:1`
`4:1`
`1:2`
`1:4`

ANSWER :A


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