AP EAMCET · Chemistry · Structure of Atom
When a metal surface is irradiated with light of frequency \(x \mathrm{~Hz}\), the kinetic energy of emitted photoelectrons is \(z \mathrm{~J}\). When the same metal is irradiated with light of frequency \(y \mathrm{~Hz}\), the kinetic energy of emitted electrons is \(\frac{\mathrm{z}}{3} \mathrm{~J}\). What is the threshold frequency (in Hz ) of metal?
- A \(\frac{3}{2}(y-x)\)
- B \(\left(\frac{3 y-x}{2}\right)\)
- C \(\left(\frac{2 y-x}{3}\right)\)
- D \(\frac{2}{3}(y-x)\)
Answer & Solution
Correct Answer
(B) \(\left(\frac{3 y-x}{2}\right)\)
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