Thermal Physics> A radio active substance of half life per...

A radio active substance of half life period 2 hrs is present in a reactor. At the initial moment the mass of the substance is 50 mg. Six hours later the mass of the radioactive substance would be nearly_________.

Tanmay Bhuskute , 10 Years ago

Grade 10

1 Answers

govardhan

given that half life period=2 hours

INITIAL MASS=50 MG

GIVEN TIME =6HOURS

WE USE THIS RELATION N=N0/2^n

WHERE n=GIVEN TIME/HALF LIFE PERIOD

n=6/2

n=3

now

N=N0/2^n

N=50mg/2^3

N=50mg/8

N=6.25mg

Six hours later the mass of the radioactive substance would be nearly 6.25 mg.

Approved

Last Activity: 10 Years ago

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Thermal Physics> A radio active substance of half life per...

A radio active substance of half life period 2 hrs is present in a reactor. At the initial moment the mass of the substance is 50 mg. Six hours later the mass of the radioactive substance would be nearly_________.

Tanmay Bhuskute , 10 Years ago

govardhan

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