HWK44s_G11(1)

# HWK44s_G11(1) - equals the angle made with the normal by...

This preview shows page 1. Sign up to view the full content.

HWK 44 (11th grade) (SOLUTIONS) (due 5/30/07) Read chp. 29 pgs. 442-452 Do 1, 4, 5, 11, 12 29.1: A wave’s energy is totally reﬂected back if the boundary is totally reﬂected. When partially reﬂected, the energy is partially transmitted and/or partially absorbed. All of this is because the energy travels with the wave. 29.4: A normal to the surface is a line perpendicular to the surface. If a ray hits a surface at a certain point, we are interested in the angle the ray makes with the normal to the surface at that point. 29.5: The Law of Reﬂection: When a wave hits the boundary of a reﬂective surface, the angle made with the surface normal by an incident ray
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: equals the angle made with the normal by the reﬂected ray. 29.11: The law of reﬂection holds for both sound and light waves. 29.12: When light travels from one material to another, when it hits the surface of the second material, it can reﬂect back into the ﬁrst material (in whole, or in part) or travel into the second material (again, either in whole or in part). When it enters the second material, it bends (or refracts) due to the diFerence in speed with which it travels in the seond material. 1...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online