BITSAT 2014 Paper

Section: Physics

Question : 34 of 150

Marks: +1, -0

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

1.49 eV
2.2 eV
3.0 eV
5.0 eV

Validate

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