A concave lens is thinner at the centre than at the edges. Concave lenses are thinner at the middle. Rays of light that pass through the lens are spread out (they diverge). A concave lens is a diverging lens. When parallel rays of light pass through a concave lens the refracted rays diverge so that they appear to come from one point called the principal focus. The distance between the principal focus and the centre of the lens is called the focal length.
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Tupac Shakur Height Weight Body Measurements. Tupac Shakur. Tupac Amaru Shakur, also known by his stage names 2Pac and briefly as Makaveli, was an American rapper and actor. Shakur has sold over 75 million records worldwide, making him one of the best-selling music artists of all time. We have Tupac Shakur height and weight here.