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Be sure to answer all parts. Calculate the wavelength (in nm) of light with energy 1.89 ×10−20...

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Chemistry

Be sure to answer all parts.

Calculate the wavelength (in nm) of light with energy 1.89×10−20 J per photon.

..............nm

For light of wavelength 460 nm, calculate the number of photons perjoule.

.........× 10^...... ( photons/J Enter your answer inscientific notation.)


Determine the binding energy (in eV) of a metal if the kineticenergy possessed by an ejected electron (using one of the photonswith wavelength 460 nm) is 2.58 ×10−19 J.

.............. eV

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