The half-life period of radium is `1600` years. The fraction of a sample of radium that would remain after `6400` years is.A. `(1)/(4)`B. `(1)/(2)`C. `(1)/(8)`D. `(1)/(16)`

The half-life period of radium is `1600` years. The fraction of a samp

1.	The half-life period of radium is `1600` years. The fraction of a sample of radium that would remain after `6400` years is.A. `(1)/(4)`B. `(1)/(2)`C. `(1)/(8)`D. `(1)/(16)`
Answer» Correct Answer - D (d) Fraction `= (N)/(N_0) = ((1)/(2))^((6400)/(1600)) = ((1)/(2))^4 = (1)/(16)`.

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The half-life period of radium is `1600` years. The fraction of a sample of radium that would remain after `6400` years is.A. `(1)/(4)`B. `(1)/(2)`C. `(1)/(8)`D. `(1)/(16)`

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