Class/Course - Class XII

Subject - Physics

Chapter - Dual Nature of Radiation and Matter


Attention Class XII standard Aspirants! Just Exam provide a platform to all students who want to make practice for various subject online. We prepare this platform on the base of CBSE. If you want to join our unlimited test series, then please write us at info@justexam.in about your class/course


Dear User, Kindly login/register to view answer & explanation of each question.
Click here to Login/Sign Up.
Q.1 The light sensitive compound on most photographic films is silver bromide AgBr. A film is exposed when the light energy absorbed dissociates this molecule into its atoms. The energy of dissociation of AgBr is 105 J mol-1. For a photon that is just able to dissociate a molecule of AgBr, the photon energy is
  1.04 eV
  2.08 eV
  3.12 eV
  4.16 eV