1.
If the wavelength of incident light changes from 400 nm to 300 nm, the stopping potential for photoelectrons emitted from a surface becomes approximately
2.
In a photoelectric experiment for incident radiation, the potential difference to stop the ejection is If the incident light is changed to then the potential required to stop the ejection of electrons will be
3.
If the potential difference between the anode and cathode of the -ray tube is increase