Unpolarized light is passed through three successive Polaroid filters, each with its transmission axis at 45.0° to the preceding filter. What percentage of light gets through?
a. 0%
b. 12.5%
c. 25.0%
d. 50.0%
e. 33.3%
b
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What are "forbidden lines"? Briefly describe how they form
What will be an ideal response?
Why is Neptune denser than Saturn?
A) It has a different composition than Saturn, including a higher proportion of hydrogen compounds and rocks. B) It has a greater proportion of hydrogen than Saturn. C) The extra mass of Neptune compresses its interior to a greater extent than that of Saturn. D) Its hydrogen is molecular, whereas Saturn's hydrogen is atomic. E) It is not denser than Saturn.
Our Solar System:
is centrally positioned in the Milky Way galaxy. formed 10 billion years ago. has a massive, first-generation star at its center. completes one rotation around the center of the Milky Way every 250 million years. All of the above are true.
Pascal's Principle states that an increase of pressure on an enclosed fluid is transmitted ________ throughout the fluid.
Fill in the blank(s) with the appropriate word(s).