Photoelectric EffectHard
Question
A sample of radioactive material has mass m, decay constant λ, and molecular weight M. Avogadro constant = NA. The initial acitvity of the sample is :
Options
A.λm
B.λm/M
C.
D.mNAeλ
= λN0 = λ
. NAMore Photoelectric Effect Questions
The work done in splitting a drop of water of 1 mm radius in to 106 droplets is (surface tansion of water 72 × 10-3...Which of the following is true for photon :-...An electron is accelerated from rest, between two points A and B at which the potentials are 20V and 40 V respectively. ...The unit of luminous efficiency of an electric bulb is:...The ionisation energies of K-shell for cobalt, copper, and molebdenum are 7.8, 9.0 and20.1 KeV respectively. If any meta...