Ultraviolet light of wavelength `800 A` and `700 A` when allowed to fall on hydrogen atoms in their ground states is found to liberate electrons with kinetic energies `1.8eV` and `4.0eV`, respectively. Find the value of Planck's constant.

Ultraviolet radiations of wavelengths 800 Å and 700 Å when allowed to fall on Hydrogen atoms in their ground state, were found to liberate electrons with maximum kinetic energies 1.96 eV and 4.18 eV respectively. Calculate Planck,s constant and work function or ionisation energy of the hydrogen atom.

Ultraviolet light of wavelengths lambda_(1) and lambda_(2) when allowed to fall on hydrogen atoms in their ground state is found to liberate electrons with kinetic energy 1.8 eV and 4.0 eV respectively. Find the value of (lambda_(1))/(lambda_(2)) .

Ultraviolet light of wavelengths lambda_(1) and lambda_(2) when allowed to fall on hydrogen atoms in their ground state is found to liberate electrons with kinetic energy 1.8 eV and 4.0 eV respectively. Find the value of (lambda_(1))/(lambda_(2)) .

U.V. light of wavelenght 800Å & 700Å falls on hydrongen atoms in thir ground state & liberates electrons with kinetic energy 1.8eV and 4eV respectively . Calculate planck 's constant.

U.V . light of wavelength 800A^(@)&700A^(@) falls on hydrogen atoms in their ground state & liberates electrons with kinetic energy 1.8eV and 4eV respectively. Calculate planck's constant.

U.V . light of wavelength 800A^(@)&700A^(@) falls on hydrogen atoms in their ground state & liberates electrons with kinetic energy 1.8eV and 4eV respectively. Calculate planck's constant.

U.V . light of wavelength 800A^(@)&700A^(@) falls on hydrogen atoms in their ground state & liberates electrons with kinetic energy 1.8eV and 4eV respectively. Calculate planck's constant.

Ultraviolet light of wavelength lambda_(1) and lambda_(2) (with lambda_(2) gt lambda_(1) ) when allowed to fall on hydrogen atoms in their ground state is found to liberate electrons with kinetic energies E_(1) and E_(2) respectively. The value of the planck's constant can be found from the relation