How is forward biasing different from reverse biasing in a p-n junction diode?

Explanation

In forward biasing : The positive terminal of the external battery is connected to p-side and the negative terminal of battery to n-side of p-n junction. The forward bias voltage opposes the potential barrier. Due to this, the potential barrier is reduced and hence the depletion beomes thin.
In reverse biasing : In negative terminal of the external battery is connected to p-side and the positive terminal of battery to n-side of p-n junction. The reverse biased voltage supports the barrier voltage. Due to this, the size of depletion region increases. The resistance of p-n junction. The reverse biased voltage supports the barrier voltage. Due to this, the size of depletion region increases. The resistance of p-n junction becomes high.