Depletion layer width.......under.......condition and.......

Depletion layer width.......under.......condition and....... under .......condition.

1. Decreases, forward biased, increases, reverse biased
2. Increases, forward biased, decreases reverse biased
3. Decreases, reverse biased, increases, forward biased
4. None of these

Depletion layer width decreases under forward biased condition and increases under reverse biased condition.