PHYS 1260 Exam 3 Questions and Answers 2024

Light travels at.. - 3.00E+8 m/s Refraction is.... - the bending of light as it passes from one medium to another Reflectance - the ratio of the intensity of the reflected light Most of the waves in the electromagnetic spectrum are - invisible From low n to high n - a transmitted ray is bent, or refracted, toward the normal From high n to low n - a transmitted ray is bent, or refracted, away from the normal Light travels from one place to another along a path of least - time When a pulse of white light is incident on a glass prism, the first color to emerge is - red Image-forming rays parallel to the optical axis (paraxial) always pass through the - focal point The image of the "infinitely-far-away" sun produced by a converging lens appears - at the focal point A "pinhole camera" has no lens. The tiny pinhole opening ensures that rays of light from different parts of an object - don't overlap