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What Wavelength of Light Is Required to Cause the Ejection

Question 142

Multiple Choice

What wavelength of light is required to cause the ejection of photoelectrons with kinetic energies of 5.0 What wavelength of light is required to cause the ejection of photoelectrons with kinetic energies of 5.0 <font face= symbol ></font>J from a calcium surface (<font face= symbol ></font> <font face= symbol ></font> 4.60 <font face= symbol ></font>J) ? A) 485 nm B) 390 nm C) 308 nm D) 632 nm E) 480 nm J from a calcium surface ( 4.60 What wavelength of light is required to cause the ejection of photoelectrons with kinetic energies of 5.0 <font face= symbol ></font>J from a calcium surface (<font face= symbol ></font> <font face= symbol ></font> 4.60 <font face= symbol ></font>J) ? A) 485 nm B) 390 nm C) 308 nm D) 632 nm E) 480 nm J) ?


A) 485 nm
B) 390 nm
C) 308 nm
D) 632 nm
E) 480 nm

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