JEE Main2019Physics
Q.
In a photoelectric effect experiment the threshold wavelength of light is 380 nm. If the wavelength of incident light is 260 nm, the maximum kinetic energy of emitted electrons will be :
Given E (in eV)
- A
4.5 eV
- B
15.1 eV
- C
3.0 eV
- D
1.5 eV
Solution

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