Complete the Law: Modern Physics (ISC 12)

Exercise and reference answers

Missing parts

1. Answer

   work function

   Choices

   1. work function
   2. kinetic energy
   3. momentum

2. Answer

   threshold

   Choices

   1. threshold
   2. natural
   3. cut-off voltage

3. Answer

   intensity

   Choices

   1. intensity
   2. wavelength
   3. charge

Complete the statement

Einstein's equation is hf = {0} + (1/2)mv^2. Below the {1} frequency, no electrons are emitted regardless of {2}.

Instructions

Pick the word that fills each blank.