The work functions for three metals x,y and z are respectively 3ev,5ev and 7ev, then more reactive metal? "

The work functions for metals A, B and C are respectively 1.92 eV, 2.0 eV and 5 eV. According to Einstein's equation the metals which will emit photoelectrons for a radiation of wavelength 4100 Å is/are

The work function for metals X , Y and Z are respectively 1.92 eV , 2.0 eV and 5.0 eV . According to Einstein equation , the metal which will emit photoelectrons for a radiation of wavelength 4100 "Å" is/ are :

The work function for metals A , B and C are respectively 1.92 eV , 2.0 eV and 5 eV . According to Einstein's equation , the metals which will emit photoelectrons for a radiation of wavelength 4100 Å are

The work functions for metals A, B and ( C) are presepctively 1. 92 eV , 2, 0 eV 1 and 5.0 eV According to Einstein equation , the metal which will emit photoelectron for a radistion fo wavelingth 4100 Å /are

If the work functions of three photosensitive materials are 1 eV, 2 eV and 3 eV respectively, then the ratio of the respective frequencies of light that produce photoelectrons of the maximum kinetic energy of 1 eV from each of them is

Work functions for metals A and B are 2 eV and 4 eV respectively. Which metal has a lower threshold wavelength and why ?

The work function for tungsten and sodium are 4.5 eV and 2.3 eV respectively . If the threshold wavelength lambda for sodium is 5460 Å , the value of lambda for tungsten is

The work function for Al, K and is 4.28 eV, 2.30 eV and 5.65 eV respectively. Their respective threshold frequencies would be