Question

A mirror of a parobolic shape is given the mirror of a surface is y square =8 rays are parallal to principal axis are focused at

Answer 1

Answer:

(2,0)

Explanation:

The rays parallel to principal axis are focussed at focus.

If y² = 4ax is a parabola, then (a,0) is its focus.

Given parabola y² = 8x

y² = 4(2)x

Therefore its focus is (2,0).

So the rays parallel to principal axis get focussed at (2,0).