Light of wavelength of 2000 A falls on an aluminium surface. In aluminium, 4.2 eV are required to remove an electron from its surface. What is the kinetic energy, in electron volt, of (a) the fastest, and (b) the slowest 4.2 eV are required to remove an electron from its surface. What is the kinetic energy and (b) the slowest in electron volt Light of wavelength of 2000 A falls on an aluminium surface. In aluminium of (a) the fastest September 11, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related