a) Explain photoelectric effect and write Einstein… – Class 12 Physics 2081 Solved

Class 12 Physics · 2081 · Solved Question with Answer

a) Explain photoelectric effect and write Einstein photoelectric equation.

b) Obtain an expression for the velocity of an electron in the first excited state.

c) Calculate the de-Broglie wavelength of an electron which has been accelerated through a potential difference of $300\text{V}$ .

$[ \text{Mass of electron } = 9.1 \times 10^{-31}\text{kg, Planck's constant, } h = 6.6 \times 10^{-34}\text{Js} ]$

Solution

a) Explain photoelectric effect and write Einstein photoelectric equation. b) Obtain an expression for the velocity of an electron in the first…