NEET Physics Question - Semiconductor Physics - Properties of Semiconductors

Assertion (A): The conductivity of an intrinsic semiconductor depends on its temperature.

Reason (R): No important electronic device can be developed using intrinsic semi conductor.

Both (A) & (R) are true and the (R) is the correct explanation of the (A)

Both (A) & (R) are true but the (R) is not the correct explanation of the (A)

(A) is true but (R) is false

Both (A) and (R) are false

Solution:

In an intrinsic semiconductor, conductivity increases with temperature due to increased generation of electron-hole pairs. So Assertion (A) is true. Intrinsic semiconductors have limited practical use due to low conductivity, making Reason (R) true in terms of 'important' devices. However, (R) does not explain (A).

Rankers Physics

Intrinsic Semiconductor Conductivity

Solution:

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