﻿ A radioactive element has half life period 800 yrs. After 6400 yrs what amount will remain : Kaysons Education

# A Radioactive Element Has Half Life Period 800 Yrs. After 6400 Yrs What Amount Will Remain

#### Video lectures

Access over 500+ hours of video lectures 24*7, covering complete syllabus for JEE preparation.

#### Online Support

Practice over 30000+ questions starting from basic level to JEE advance level.

#### National Mock Tests

Give tests to analyze your progress and evaluate where you stand in terms of your JEE preparation.

#### Organized Learning

Proper planning to complete syllabus is the key to get a decent rank in JEE.

#### Test Series/Daily assignments

Give tests to analyze your progress and evaluate where you stand in terms of your JEE preparation.

## Question

### Solution

Correct option is

1/256

.

#### SIMILAR QUESTIONS

Q1

The half life of 131I is 8 days. Give a sample of 131I at time t = o, we can assert that

Q2

The mass of one mole of electrons is

Q3

The increasing order for  the values of e/m is

Q4

The total number of neutrons in dipositive zinc ion with mass number 70 is

Q5

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

Q6

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

Q7

Half life of radium is 1600 yrs. Its average life is

Q8

What percentage of original radioactive atoms is left after four half lives

Q9

No atoms of radioactive element emit N2 beta particles per second. The decay constant of element in sec–1 is

Q10

A nucleus  emits one alpha particle and two β-particle The resulting nucleus is