Light from the sun passes through a converging lens and forms an image at
A. infinity.
B. the center of curvature of the lens.
C. the center of the lens.
D. the focal point.
Answer: D
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You are asked to select a material for a container on a ship for liquified natural gas that will be at –163°C (–260°F). For the classes of metals, ceramics, polymers, and composites give the advantages and disadvantages of the best possible material within each class of material for this design based upon subjects you have studied in Chapters 1 to 4 in this book. For example you may decide that carbon fiber reinforced epoxy is the best possible composite material for this design. Give the advantages and disadvantages of carbon fiber reinforced epoxy for this design.
What will be an ideal response?
A prism has a vertex angle of 60° and an index of refraction of 1.52. What is the minimum angle of incidence, measured away from the vertex, for a ray of light to emerge from the other side of the prism?
A) 25.6° B) 38.7° C) 29.4° D) 32.1° E) 33.3°
From the fact that virtually every galaxy is moving away from us and more distant galaxies are moving away from us at a faster rate than closer ones, we conclude that
A) the Milky Way Galaxy is expanding. B) we are located at the center of the universe. C) even nearby galaxies will eventually be moving faster than the speed of light. D) the universe is expanding. E) the universe is shrinking.
A compact object with a mass of 1.1 solar masses could ____
a. be a neutron star or a black hole b. be a neutron star, but not a black hole c. be a black hole, but not a neutron star d. not be a black hole or neutron star e. not be a black hole or neutron star