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)  

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

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

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

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

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

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

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

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

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

A proton, when accelerated through a potential difference of V volts, has a wavelength  associated with it. If an alpha particle ius to have the same wavelength , it must be accelerated through a potential difference of