Quantum mechanics

kenika Posts: 1, Reputation: 1

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Jan 9, 2011, 04:50 AM

Quantum mechanics

The stopping potential for photoelectrons emitted from a surface illuminated by light of wavelength of 4910Angstrom is 0.71Angstrom is 0.71V.when the incident wavelength is changed the stopping potential is found 1.43V.what is wavelength?

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