The threshold wavelength for a metal is 4000 Å. A radiation of wavelength 5000 Å is incident on the metal. Can it cause P.E.E?

The threshold wavelength for a certain metal is 2000 Å. The work function of the is

The photoelectric threshold wavelength for a metal is 10,000 Å . When light of wavelength 5461 Å is incident on it, the retarding potential in Millikan's experiment is 1.02 V. Calculate the value of Planck's constant.

Threshold wavelength of metal is 30 Å If radiation of 2000Å Is incident metal surface then ……

The threshold frequency for a metal is 10^(15) Hz. When light of wavelenght 4000 Å is made incident on it, then

The threshold wavelength of tungsten is 2300 Å. If ultra voilet light of wavelength 1800 Å is incident on it, then the maximum kinetic energy of photoelectrons would be

The work function of a metal surface is 2.0 eV. Light of wavelength 5000 Å is incident on it:

Threshold wavelength for lithium metal is 6250 Å. For photo emission, the wavelength of the incidennt light must be