The Speed of Light Generally Decreases When It Passes Through $\eta$

question 61

Multiple Choice

The speed of light generally decreases when it passes through media other than a vacuum.The speed, v, is approximately c (2.998 *10⁸ m/s) divided by a quantity called the medium's refractive index, $\eta$ .In which of the following would the frequency of 193 nm light be the lowest? ( $\nu$ = c/ $\eta$ ; c = $\lambda$$\nu$ )

• A)hydrogen, \(\eta\) = 1.0001
• B)carbon tetrachloride, \(\eta\) = 1.461
• C)silicone oil, \(\eta\) = 1.520
• D)water, \(\eta\)= 1.3330
• E)diamond, \(\eta\) = 2.419

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Definitions:

Food Storage

The practice of keeping food in such a manner as to prevent spoilage or contamination, ensuring it remains safe and nutritious for future consumption.

Short Erect

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A type of fruit with a single seed or pit, surrounded by a fleshy outer part, examples include peaches, cherries, and plums.