The electrical conductivity of semiconductors can be increased by:
- ADecreasing the temperature
- BAdding impurities (Doping)
- CPurification
- DNone of the above
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Wax is an example of which type of crystal?
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View SolutionWhich one of the following elements, when present as an impurity in silicon, makes it a $p$-type semiconductor?
Match items of List-$I$ with those of List-$II$ :
List-$I$ (Property) List-$II$ (Example) $a$. Diamagnetism $i$. $MnO$ $b$. Ferrimagnetism $ii$. $O_{2}$ $c$. Paramagnetism $iii$. $NaCl$ $d$. Antiferromagnetism $iv$. $Fe_{3}O_{4}$
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| List-$I$ (Property) | List-$II$ (Example) |
| $a$. Diamagnetism | $i$. $MnO$ |
| $b$. Ferrimagnetism | $ii$. $O_{2}$ |
| $c$. Paramagnetism | $iii$. $NaCl$ |
| $d$. Antiferromagnetism | $iv$. $Fe_{3}O_{4}$ |
Choose the most appropriate answer from the options given below:
DifficultJEE MAIN 2021
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