Engineering Physics

Multiple Choice Questions

1. Crystal directions are defined as:     ( )
   • certain directions inside the crystal along which large concentration of atoms exists
   • certain directions inside the crystal along which low concentration of atoms exists
   • certain directions inside the crystal along which no atoms are present
   • none
2. Crystal planes and directions can be represented by a set of _____ small integers.     ( )
   • 2
   • 3
   • 4
   • 6
3. To represent crystal direction, the Miller indices should be enclosed in ( )
   • square brackets
   • round brackets
   • curly brackets
   • none
4. If the Miller indices of two planes are (211) and (422), then they are:     ( )
   • parallel
   • perpendicular
   • they are at an angle of 45°
   • none
5. If the Miller indices of a plane along Y and Z-direction is zero, ...