In this interactive activity featuring videos adapted from the Rutgers PAER Group, observe the refraction of light as it passes through transparent objects. In the first example, when a convex lens is placed in the path of parallel beams of light, the beams converge after passing though the lens. In the second example, when a concave lens is placed in the path of parallel beams of light, the beams diverge after passing through the lens. In the third example, when a rectangular piece of glass is placed in the path of a beam of light, the light bends at the boundary both into and out of the glass.
This media asset was adapted from Rutger’s Physics Teaching Technology Resource, courtesy of E. Etkina and D. Brookes.
© 2015 PBS & WGBH Educational Foundation. All rights reserved.