Concave lens
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Concave lensConcave Lens
A concave lens is a diverging lens that is thinner at the center and thicker at the edges. It spreads light rays outward when they pass through it, forming a virtual, erect, and diminished image. Concave lenses are widely used in optical instruments such as spectacles for correcting myopia (short-sightedness), flashlights, door viewers, and scientific laboratory experiments. They are an essential component in physics labs for studying light refraction and lens behavior.