Chemistry - Atomic Structure Question with Solution | TestHub

A photoelectric surface is illuminated successively by monochromatic light of wavelength ' $\lambda$ ' and ' $\left(\frac{\lambda }{2}\right)$ '. If the maximum kinetic energy of the emitted photoelectrons in the first case is one-fourth that in the second case, the work function of the surface of the material is

(c = speed of light, h = Planck's constant)