Optics – Mirrors & LensesiasmaniaJanuary 2, 2016 Optics – Mirrors & Lenses Light follows a rectilinear propagation (3 * 108 m/s) Umbra Point source of light Shadow (Total dark) Penumbra Extended source of light Shadow (Partial dark)… View Post
Systems of Units MeasurementiasmaniaJanuary 2, 2016 Systems of Units Measurement The CGS (centimeter, gram, second) system Length is measured in centimeters, mass is measured in grams and time is measured in seconds. Thus centimeter, gram and… View Post
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