Ultraviolet light is shone on a piece of metal that has a known work function,and electrons are observed being produced through the interaction of the light with the metal.The lamp that produces the light is now replaced with a lamp of the same intensity,but which produces photons having a longer wavelength.What difference is observed in the number of electrons produced per unit time?
A) The same number are produced.
B) More are produced.
C) Without knowing more about the wavelengths used,one cannot answer.
D) Fewer are produced.

Question

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The Answer of Ultraviolet light is shone on a piece of metal that has a known work function,and electrons are observed being produced through the interaction of the light with the metal.The lamp that produces the light is now replaced with a lamp of the same intensity,but which produces photons having a longer wavelength.What difference is observed in the number of electrons produced per unit time?
A) The same number are produced.
B) More are produced.
C) Without knowing more about the wavelengths used,one cannot answer.
D) Fewer are produced.

Ultraviolet Light Is Shone on a Piece of Metal That