it appers to be small since at aperture the lens appear flat
prince raj
Last Activity: 10 Years ago
The area of a concave mirror that is exposed to incident light is called the aperture. If the aperture of a concave mirror is small, then its focal length is equal to half its radius of curvature.
Deepak Bohra
Last Activity: 10 Years ago
it appers to be small since at aperture the lens appear fla
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