Photo-electric-effect|Nuclear-phy|Law of Radio-action-disintegration

Photo-electric effect can be explained by

Law of mass action is applicable to

Law of mass action cannot be applied to

What is the effect of temperature and pressure on the rate of radioactive disintegration ?

Law of mass action can not be applied to

What is Einstein's explanation of photo electric effect ? Explain the laws of photo electric emission on the basis of quantum nature of light.

Photo electric effect:-Introduction||Effect OF intensity||Voltage and frequency on photo-electric effect||Graphs OF photo current||Work-function:-metal

(a) What is photo electric effect ? State the laws of photo - electric emission. (b) Show that de - Broglie wavelength of electron when accelerated through a potential difference V is given by the relation - lamda=(12.27)/sqrtVÅ , where V is in volt.