The work function of a substance is $3.0\ \mathrm{eV}$. The longest wavelength of light that can cause the emission of photoelectrons from this substance is approximately:
The work function of a substance is $3.0\ \mathrm{eV}$. The longest wavelength of light that can cause the emission of photoelectrons from this substance is approximately:
- [JEE MAIN 2024]
- A
$215 \mathrm{~nm}$
- B
$414 \mathrm{~nm}$
- C
$400 \mathrm{~nm}$
- D
$200 \mathrm{~nm}$
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