The Faraday effect is the rotation of the plane of polarization of light due to interaction with a magnetic field. A link is provided to the Wikipedia article where some clearly understandable...
Used mostly in endoscopes to see inside a patients body. A light is usually passed down to illuminate the cavity. They can also be used to make phone calls or print images of the surgery.
saken gayam si antonio ay wacangan nalpo ak id kayan tin mae ak ed kubaban ngem ide malpas katakdegak yan kapantalonak ay tomagtag that is the meaning the application of thermal effects