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October 24, 2021 • 16:52 pm 30 points
• IIT JAM
• Physics (PH)

The equation describing the shape of curved mirror with the property that the light from a point source at the origin will be reflected in a beam of rays parall

The equation describing the shape of curved mirror with the property that the light from a point source at the origin will be reflected in a beam of rays parallel to the x-axis is (with Q1. a as some constant) (a) y = ax +a (6) 2y = x +a (c)y=2ax+a (d)y= ar +2a

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• Dr suman 1

Paraboloid is a shape you obtain when you rotate the parabola on its symmetric axis. The parabolic mirror is used in automobile headlights , solar concentrator , dish antennas , radar , etc. If You keep a light source on its focus then you get parallel beam. If You let the parallel beam fall on it then you get all lights rays focused on the focal point of mirror. so, option A represent the equation of parabola.