A radioactive substance of mass 100 g is decaying such that after t days the amount remaining,

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A radioactive substance of mass 100 g is decaying such that after t days the amount remaining, M, is given by the equation M = 100e^−0.002t.

a. Sketch the graph of M against t.

b. What is the half-life of the substance (i.e. the time taken to decay to half the initial mass)?

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Cambridge IGCSE And O Level Additional Mathematics

ISBN: 9781510421646

1st Edition

Authors: Val Hanrahan, Jeanette Powell

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Question Posted: Sep 02, 2021 01:09 AM

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A radioactive substance of mass 100 g is decaying such that after t days the amount remaining,

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a The graph of M against t can be obtained by plotting the pairs t M fo...View the full answer

Cambridge IGCSE And O Level Additional Mathematics

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