Chapter 4 Refraction of Light
2. Is the critical angle greater at a water-air surface or a
Water-air surface - sin c =
And the index of refraction of water is greater than glass
4. Why does increasing the diameter of a converging
Chapter 5 Interference and Diffraction
1. What is the difference between interference and
Interference is a phenomenon, which two waves from a larger or
smaller wave, and the width of fringes always equal.
Diffraction is a phenomenon when a w
Chapter 2. The Mystery of Light
1. a. What is a wave?
b. Give four examples of waves observed in everyday life.
Wave is a disturbance (interference) that transfers energy
progressively from point to other point in medium.
Examples: sound wave, light wave,
Chapter 10 Photography
1. To focus a camera, you move the lens back (closer to the
film) or forward (farther from the film). When the lens is
closer to the film, are you focused on a near or a far object?
A far object, then distance from lens to image inc
Chapter 7 Polarized Light
1. What is the difference between polarized light and
Polarized light has E-field vibrating in one direction, Unpolarized
light has E-field vibrating in all directions.
2. Can sound waves be polarized? Explain
Chapter 6 Light Sources
1. What is a blackbody? Sketch a typical blackbody spectral
A blackbody is an ideal absorber of
light. And it also is an ideal emitter.
Spectral distribution of light radiated by
blackbodies at several temperatu
Chapter 1 Our World of Light and Color
1. Why must you look in the direction of your shadow in
order to observe a rainbow?
Because to see the rainbow in the sky above the horizon. The
antisolar point, which is the shadow of your head, must less than 42
Chapter 3 Reflection, Mirrors, and Kaleidoscopes
1. State the law of reflection and draw a sketch that
illustrates this law.
The will be equal, and the incident ray will reflect the same size
of the reflected ray.
3. Why wouldnt you want to use a specular
Chapter 8 Color Vision
2. The secondary colors, cyan, magenta, and yellow, can
each be obtained by subtracting a primary color from white
light. Which primary color is subtracted in each case?
White green =magenta
White red = cyan
White blue = yellow
Chapter 9 Holography
1. How is it possible for a two-dimensional hologram to
produce a three-dimensional image?
To create a 3D image requires two photographs taken from different
angles, and each viewed with one eye. That is reconstructs images
from a ser
Physics 153 Exam 1 (practice exam 2017)
Time: 50 minutes
Total points: 50
Question 1. (3)
What is the scientific definition of a wave? (1)
What did scientists originally think the medium for a light wave was? (1)