The photoelectric threshold wavelength of a certain metal is 3000\[\ov – McqOptions

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1.	The photoelectric threshold wavelength of a certain metal is 3000\[\overset{\text{o}}{\mathop{\text{A}}}\,\]. If the radiation of 2000\[\overset{\text{o}}{\mathop{\text{A}}}\,\] is incident on the metal
A.	Electrons will be emitted
B.	Positrons will be emitted
C.	Protons will be emitted
D.	Electrons will not be emitted
Answer» B. Positrons will be emitted

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