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QJEEM24Ph829f: JEE Main 2024 Physics - Class 12 JEEM24Ph829f Solution: The acceptor level of a p-type semiconductor is 6   eV .…

The acceptor level of a p-type semiconductor is 6 eV. The maximum wavelength of light which can create a hole would be : Given hc=1242 eV nm.

Multiple Choice Options

  • A 407 nm
  • B 103.5 nm
  • C 414 nm
  • D 207 nm

Step-by-Step Verified Solution

The energy required to create a hole in a p-type semiconductor can be directly related to the acceptor level because this energy level represents the minimum energy required to excite an electron from the valence band into the acceptor level, effectively creating a hole. The acceptor level is given as 6eV.

To find the maximum wavelength of light that can excite an electron into this level, we use the equation that relates the energy (E) of a photon to its wavelength (λ):

E=hcλ

Where:

  • E is the energy in electronvolts (eV),
  • h is Planck's constant,
  • c is the speed of light, and
  • λ is the wavelength in nanometers (nm).

The product of hc is given as 1242eV nm, allowing us to solve for λ directly:

λ=hcE

Substituting the given values:

λ=1242eV nm6eV=207nm

Thus, the maximum wavelength of light that can create a hole in the semiconductor by exciting an electron into the acceptor level is 207nm. Therefore, the correct answer is Option D: 207 nm.

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