Across
- 4. the rate at which a vibration occurs that constitutes a wave
- 7. confusion of a received radio signal due to the presence of noise (such as atmospherics) or signals from two or more transmitters on a single frequency
- 9. a telescope in which a mirror is used to collect and focus light
- 10. a type of optical telescope that uses a lens as its objective to form an image
- 11. the process or action by which one thing absorbs or is absorbed by another.
Down
- 1. In geometric optics, a deviation from rectilinear projection; a projection in which straight lines in a scene remain straight in an image.
- 2. the distance between two corresponding points on a wave
- 3. They have the shortest wavelengths and highest energy of any wave in the electromagnetic spectrum.
- 5. the throwing back by a body or surface of light, heat, or sound without absorbing it.
- 6. someone who uses the principles of physics to study the solar system, stars, galaxies, and the universe
- 8. change in direction of propagation of any wave as a result of its traveling at different speeds at different points along the wave front.
- 12. a band of colors, as seen in a rainbow, produced by separation of the components of light by their different degrees of refraction according to wavelength.