## Question

A radioactive nucleus is leing produed at a constant rate ∝ per second. Its decay constant is λ. If N_{o}. are the number of nuclei at time *t* = 0, then themanimum no, of nuclei

### Solution

Manimum number of nuclei will be present, when rate of decay = rate of formation

#### SIMILAR QUESTIONS

The nucleus decays by -emission. Write down the decay equation and determine the maximum kinetic energy of the emitted electron. The atomic masses of are 22.994466 *u* and 22.989770 *u* respectively.

When a deuteron of mass 2.0141 *u* and negligible kinetic energy is absorbed by a lithium nucleus of mass 6.0155 *u*, the compound nucleus disintegrates spontaneously into two alpha particles, each of mass 4.0026 *u*. Calculate the energy in joule carried by each alpha particle.

If the half lives of a radioactive element for α and β decay are 4 yrs and 12 yrs respectively, the ratio of their activities after six yrs will be

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The increasing order for the values of e/m is

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A radioactive sulestance has a half–life of four months three fourth of thesulestance will decay in