Pieces of potassium (Φ  = 3.68 × 10–19 J) and sodium (Φ  = 4.41 × 10–19 J) metal are exposed to radiation of wavelength 315 nm. What is the velocity of the electrons from potassium?   What is the velocity of the electrons from sodium?

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Chapter7: Quantum Theory Of The Atom
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Pieces of potassium (Φ  = 3.68 × 10–19 J) and sodium (Φ  = 4.41 × 10–19 J) metal are exposed to radiation of wavelength 315 nm.

What is the velocity of the electrons from potassium?

 

What is the velocity of the electrons from sodium?

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