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A radioactive isotope has a decay constant of 10-6s-1. Calculate its half - life?

Physics
JAMB 2016

A radioactive isotope has a decay constant of 10-6s-1.
Calculate its half - life?

  • A. 5.93 x 106s
  • B. 6.93 x 105s
  • C. 6.93 x 109s
  • D. 5.93 x 107s
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Correct Answer: Option B
Explanation

t1/2 = \(\frac{0.693}{\gamma}\) = \(\frac{0.693}{10^-6}\)

= 6.93 x 105

There is an explanation video available below.

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Project Topics and Materials, Post-UTME past questions - Download now or upload yours to get paid
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
Join your school's WhatsApp group
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Project Topics and Materials, Post-UTME past questions - Download now or upload yours to get paid
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts