The half-life of a radioactive element is 5 Calculate its decay constant

0.113s^-1

0.436 s^-1

0.139 s^-1

0.193 s^-1.

Correct Option

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12 years ago

For halflife :T1/2 =0.693/^. 0.693/5=0.1386 option c

11 years ago

U RE CORRECT

9 years ago

more explanation on this

9 years ago

NOT ACCEPTED

9 years ago

The selected answer is wrong:

0.963/5=0.1926

REF: COMPREHENSIVE PHYSICS

1 year ago

ceoofwahala

20th June, 2026

Chemistry

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ASSAAS

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infinitehoaxx

21st May, 2026

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