Scope of Physics

Macroscopic Domain

Classical Physics

• Mechanics – planets, vehicles, bridges etc.
• Optics – telescope, lenses, reflectors etc.
• Electromagnetism – electric current, motors etc.
• Waves – sound etc.

Microscopic Domain

Exceedingly small sized domain

• atoms
• nucleus
• electron and proton

Mesoscopic Domain

Between macroscopic and microscopic domains