AP EAMCET · PHYSICS · Dual Nature of Matter
The threshold wavelength of a photosensitive material is equal to the frequency of \(\mathrm{H}_{\mathrm{a}}\) line of hydrogen. If a photon whose frequency equal to the frequency of \(\mathrm{H}_{\mathrm{b}}\) line of hydrogen is incident on this photosensitive material, the maximum kinetic energy of the emitted photoelectrons is (R-Rydberg's constant, h- Flanck's constant and c- speed of light in vacuum)
- A \(\mathrm{Rhc}\)
- B \(\frac{5 \mathrm{Rhc}}{144}\)
- C \(\frac{7 \mathrm{Rhc}}{144}\)
- D \(\frac{\mathrm{Rhc}}{36}\)
Answer & Solution
Correct Answer
(C) \(\frac{7 \mathrm{Rhc}}{144}\)
Step-by-step Solution
Detailed explanation
\(\mathrm{H}_\alpha\) line of Balmer series…
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