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JEE Main 2024 (6 Apr, Shift 1) · Photoelectric Effect: Einstein's Equation

Photoelectric Effect: Einstein's Equation question from JEE Main 2024 (6 Apr, Shift 1)

Q55JEE Main 2024 · 6 APR · SHIFT 1Easy

Photoelectric Effect: Einstein's Equation

In photoelectric experiment energy of $2.48\text{ eV}$ irradiates a photo sensitive material. The stopping potential was measured to be $0.5\text{ V}$ . Work function of the photo sensitive material is:

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Answer: (a)

$\phi = E - eV_0$
$\phi = 2.48 - 0.5 = 1.98\text{ eV}$
So the answer is (a) 1.98 eV.

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