Pockels effect

Some crystals exhibit birefringence on application of electric field. This is known as Pockels effect.

Actual values of constants

Velocity of light = 2.99792 × 10⁸ m/s

Electron mass = 9.1095 × 10^-31 kg

Electron charge = 1.602 × 10^-19 C

Thremionic emission

Emission of electrons from a metal surface when it is heated.

ISO

International Standards Organisation