True or False Statements : Half life for certain radioactive element is 15 min. Four nuclei of that element are observed at a certain instant of time.

Question

True or False Statements : Half life for certain radioactive element is 15 min. Four nuclei of that element are observed at a certain instant of time.

True or False Statements :
Half life for certain radioactive element is 15 min. Four nuclei of that element are observed at a certain instant of time. After fifteen minutes, it can be definitely said that two nuclei will be left undecayed.

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

Related Questions

The half-life period of a radioactive element is `1.4 xx 10^(10)` years. Calculate the time in which the activity of the element is reduced to 90% of

2 Answers 4 Views

The half - line period a radioactive element `X` is same as the mean life time of another radioactive element `Y`. Initially both of them have the sam

2 Answers 5 Views

Two radioactive nuclides A and B have half-lives 50 min and 10 min respectively . A fresh sample contains the nuclides of B to be eight times that of

2 Answers 5 Views

Fill in the blanks with appropriate items : The half-life period of radioactive element _______ minute if 75% of it disintegrates in 40 min.

2 Answers 4 Views

True or False Statements : A fraction `f_(1)` of a radioactive sample decays in one mean life, and a fraction `f_(2)` decays in one half-life, then `f

2 Answers 4 Views

True or False Statements : In a radioactive element the fraction of initial amount remaining after its mean life time is l/e.

2 Answers 6 Views

True or False Statements : Half-life period of a radioactive substance can be changed by using some suitable catalyst.

2 Answers 4 Views

At a given instant there are 25% undecayed radioactive nuclei in a sample . After 10 sec the number of undecayed nuclei remains `12.5%` Calculate : (i

2 Answers 5 Views

At a given instant there are 25% undecayed rodioctive nuclei in sample After 10 s the number of undecyed nuclei reduces to 12.5 % calculate the mean l

2 Answers 5 Views

Assertion In one half-life of a radioactive substance more number of nuclei are decayed than in one average life. Reason Average life = Half -life/in

2 Answers 9 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - [F]
Calculation is applicable on the large amount of ratio active substance and it is propable.

5 views Answered 2023-02-05 15:29