Question

If the half lives of a radioactive element that decays in 6 days is 7/8. The fraction that decays in 10 days will be

Solution

Correct option is

31/32

                         

              

              

SIMILAR QUESTIONS

Q1

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

Q2

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

Q3

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

Q4

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

Q5

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

Q6

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

Q7

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

Q8

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

Q9

A sample of a radioactive element has a mass of 10g at an instant t = 0. The oppropriate mass of this element in the element in the sample after two mean lives is

Q10

The wavelength  of de Broglie waves associated with an electron (massm, charger e) accelerated through a potential difference of V is given by (his Planck’s constant)