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10 gms of 57 Cobalt kept in a container beta decays with a half life of 270 days. The wt. of the material inside the container after 540 days will be nearly?
W/Wi = (1/2)T/t (t = half life & T is time , Wi = 10gms) after 540 days W/Wi = (1/2)540/270 = (1/2)2 =1/4 W = Wi /4 = 10/4 = 2.5grams approve my ans if u like
W/Wi = (1/2)T/t (t = half life & T is time , Wi = 10gms)
after 540 days
W/Wi = (1/2)540/270 = (1/2)2 =1/4
W = Wi /4 = 10/4 = 2.5grams
approve my ans if u like
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