Note : In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.

The conductivities of semiconductors lies in between the conductors and insulators and of range 10–6 – 104 ohm–1m–1. But intermediate conductivity is due to small energy gap between valance and conduction band which is zero in case of conductors and very large in case of insulators. It has filled valance band.


So assertion is correct and reason is wrong.

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