1. If there are 1.6 × 10-19 eV per Joule, then convert 1.35 × 10-19 Joules...

1. If there are 1.6 × 10^-19 eV per Joule, then convert 1.35 × 10^-19 Joules to electron Volts (ev).

2. The energy of a photon is given in the formula above, where the product of Planck's constant (h) and the speed of light (c) stand in quotient relationship with the photon wavelength (λ).

H=6.63x10^-34 c= 3x10^8 m/s

What is the energy (in Joules) of photons with wavelength 423 nm? Answer with 2-decimal place precision.

3. If the work function (binding energy, BE) for some metal is 2.24 eV, what is the final Kinetic Energy of electrons (KE_e) ejected from the plate when photons with a wavelength of 351 nm are incident on that plate?

Answer to 2-decimal place precision.

Expert Solution

genius_generous answered 2 years ago

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