Question

why aluminium is good metal to used as a reflector in car breadlights​

Answer 1

Answer:

It's highly corrosion resistant (in most environments) because it forms a thin, stable oxide layer: Aluminium Corrosion Resistance - Aluminium Design. It's cheap compared to solid metal alternatives: chrome, stainless steel, silver, etc. It is relatively ductile, machinable, with a relatively low melting point.

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Answer 2

Explanation:

Aluminium has shiny and neutral color.

when it is polished it gives shiny appearance

it is one of the biggest and flattest reflectant of any metal.

It has an unique molecular structure that helps in providing a good reflecting surface for artificial lights to reach the plants and to magnify it's intensity.