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Sahay Sir > Question Answers > NCERT Exemplar Class 11 > Chemistry > Chapter 2 - Atomic Structure > Threshold frequency, v0 is the minimum frequency which a photon must possess to eject an electron from a metal. It is different for different metals. When a photon of frequency 1.0×1015s^−1 was allowed to hit a metal surface, an electron having 1.988×10^−19J of kinetic energy was emitted. Calculated the threshold frequency of this metal. equal to 600 nm hits the metal surface.

Threshold frequency, v0 is the minimum frequency which a photon must possess to eject an electron from a metal. It is different for different metals. When a photon of frequency 1.0×1015s^−1 was allowed to hit a metal surface, an electron having 1.988×10^−19J of kinetic energy was emitted. Calculated the threshold frequency of this metal. equal to 600 nm hits the metal surface.

For the electrons of oxygen atom Threshold frequency Which of the following solutions has the highest pH ?