Activity of radioactive element decreased to one third of original activity A0 in a period of 9 years. After further lapse of 9 years

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Activity of radioactive element decreased to one third of original activity A0 in a period of 9 years. After further lapse of 9 years, its activity will be
05
Jun
Activity of radioactive element decreased to one third of original activity A0 in a period of 9 years. After further lapse of 9 years, its activity will be Activity of radioactive element decreased to one third of original activity A0 in a period of 9 years. After further lapse of 9 years its activity will [...]
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