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

Physics & Space Science

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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.

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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.

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What are "forbidden lines"? Briefly describe how they form

What will be an ideal response?

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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).

Physics & Space Science