When we heat the metal at high temperature they emit:
Holes
Protons
Neutrons
Electrons
A positive electric charge:
Attracts other positive charge
Repels other positive charge
Attract a neutral charge
Repels a neutral charge
Eight bits combine to form:
A byte
Megabyte
Kilobyte
Gigabyte
The value of refractive index of water is:
2.33
1.36
1.33
1.39