What type of mirror used in search light?

Answer 1

Flash lights in general use what is called a paraboloid of revolution. This is the three dimensional shape you get when you take a two dimensional parabola and rotate it about its axis. This shape causes light that is coming from a single point and is traveling in many directions to be redirected into a single direction. The light bulb is at what is called the focus of the mirror.

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Answer 2

if i know the answer of this qusetion then why should i ask u ? stupid silly

Answer 3

The shape is concave, and is a silver-coated plastic in a torch.

Answer 4

A very big one