The work function of a substance is 1.6 ev. The longest wavelength of light that can produce potoemisson form the substance is

The work function of a substance is 1.6 eV . The longest wavelength of light that can produce photoemission from the substance is

The work function of a substance is 4eV. The longest wavelength of light that can cause photoelectron emission from this substance is approximately

The work function of a substance is 3.68 eV. The longest wavelength of light that can cause photoelectrons emission from this substance is approximately

The work function of a substance is 4.0 eV. The longest wavelength of light that can cause photoelectron emission from this substance is approximately:

The work function of a substance is 12.4 eV. The longest wavelength of light that can cause photoelectron emission from this substance is approximately

The work function of a substance is 12.4 eV. The longest wavelength of light that can cause photoelectron emission from this substance is approximately

The work functio of a substance is 4.0 eV . The longest wavelength of light that can cause photoelectron emission form this substance is approximately :