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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA p-n photodiode is made of a material with a bandgap of 2.0 eV. The minimum frequency of the radiation that can be absorbed by the material is nearly:
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn the energy band diagram of a material shown below, the open circles and filled circles denote holes and electrons respectively. The material is a/an:
1. p-type semiconductor
2. insulator
3. metal
4. n-type semiconductor
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology