If you fail, never give up because FAIL means 'First Attempt In Learning'.— A. P. J. Abdul Kalam

Modern Physics — quick quiz

5 real NSEA questions on Modern Physics. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.

Question 1 of 2

HARD

A photon of wavelength 400 nm strikes a metal surface with work function 1.8 eV. What is the maximum kinetic energy of the ejected photoelectron? (Use h = 6.63×10⁻³⁴ J·s, c = 3×10⁸ m/s, 1 eV = 1.6×10⁻¹⁹ J)