Tamil Nadu Board of Secondary EducationHSC Science Class 12th

# What is half-life of nucleus? Give the expression. - Physics

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Short Note

What is half-life of nucleus? Give the expression.

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#### Solution

The half-life T1/2 is defined as the time required for the number of atoms initially present to reduce to one-half of the initial amount.

T1/2 = ("In" 2)/lambda = 0.6931/lambda

Concept: Radioactivity
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#### APPEARS IN

Tamil Nadu Board Samacheer Kalvi Class 12th Physics Volume 1 and 2 Answers Guide
Chapter 9 Atomic and Nuclear physics
Evaluation | Q II. 24. | Page 191
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