Work function of a metal is 2 eV. The maximum wavelength of photons required to emit electrons from its surface is

Assertion: Work function of a metal is 4 eV. The maximum wavelength of photons required to emit electrons from its surface is about 3100 Å. Reason: Work function, phi _0= hc//lambda _max

Assertion: Work function of a metal is 4 eV. The maximum wavelength of photons required to emit electrons from its surface is about 3100 Å. Reason: Work function, phi _0= hc//lambda _max

Assertion: Work function of a metal is 5 eV. The maximum wavelength of photons required to emit electrons from its surface is 2480 Å. Reason: Work function, phi_0=(hc)/lamda_max .

Assertion: Work function of a metal is 5 eV. The maximum wavelength of photons required to emit electrons from its surface is 2480 Å. Reason: Work function, phi_0=(hc)/lamda_max .

The work function of a metal is 3.3 xx 10^-19 J . The maximum wavelength of the photons required to eject electron from the metal is :

The work function of a metal surface is 4.2 eV. The maximum wavelength which can eject electrons from this metal surface is

Work function of a metl surface is 4.2 eV. The maximum wavelength which can eject electrons from this metal surface is:

The work function of a metal surface is 4.2 eV. The maximum wavelength which can eject photo-electron from this surface is =…….Å