A concave mirror is used in vehicle headlights specifically because, with the bulb positioned at its focus, it?

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1. A concave mirror is used in vehicle headlights specifically because, with the bulb positioned at its focus, it?

Focuses light from the bulb directly onto nearby vehicles

Sends the bulb’s light out as a roughly parallel, forward-directed beam

Happens to fit neatly into the headlight’s casing shape

Is simply cheaper to manufacture than other mirror types

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Placing the bulb at a concave mirror’s focus makes the reflected rays travel out roughly parallel to each other, projecting a strong, far-reaching beam down the road.