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

Class 12 Physics · 2081 · Solved Question with Answer · Video Solution

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 $300\text{V}$ .

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

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Solution

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