Question

Light of wavelength \(5000\text{ \AA}\) falls on a sensitive plate with photoelectric work function of \(1.9\text{ eV}\). The kinetic energy of the emitted photoelectron will be

• A. \(0.58\text{ eV}\)
• B. \(2.48\text{ eV}\)
• C. \(1.24\text{ eV}\)
• D. \(1.16\text{ eV}\)

Hint:

For photoelectric effect, use \(K_{\max}=\frac{1240}{\lambda(\text{nm})}-\phi\), where \(\lambda\) is in nanometer.

Answer 1

The Correct Option is A