TG EAMCET 2 May 2025 Shift 2 Paper

An electron in n-region of a p−n junction moves towards the junction with a speed of 5×105ms−1. If the barrier potential of the junction is 0.45 V , then the speed with which the electron enters the p-region after penetration through the barrier is
(Charge of the electron =1.6×10−19C and mass of the electron =9×10−31kg )