The threshold wavelength of a photosensitive material is equal to the frequency of 
line of hydrogen. If a photon whose frequency equal to the frequency of 
line of hydrogen is incident on this photosensitive material, the maximum kinetic energy of the emitted photoelectrons is (R-Rydberg's constant, h- Planck's constant and c- speed of light in vacuum)
Text Solution
Verified by ExpertsThe correct answer is:
C
line of Balmer series
Here 
is the threshold frequency.
line of Balmer series
Maximum, kinetic energy, 
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