---
title: "A beam of monochromatic light travels through a vacuum and enters a block of dense glass with an index of refraction \\(n = 1.6\\). How do the wavelength and the speed of the light inside the glass compare to their initial values in the vacuum?"
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url: "https://nerd-notes.com/ubq/116761/"
date_modified: "2026-08-04T06:09:28+00:00"
---

# A beam of monochromatic light travels through a vacuum and enters a block of dense glass with an index of refraction \(n = 1.6\). How do the wavelength and the speed of the light inside the glass compare to their initial values in the vacuum?

A beam of monochromatic light travels through a vacuum and enters a block of dense glass with an index of refraction \(n = 1.6\). How do the wavelength and the speed of the light inside the glass compare to their initial values in the vacuum?

- **A.** The wavelength increases, and the speed increases.
- **B.** The wavelength increases, and the speed decreases.
- **C.** The wavelength decreases, and the speed decreases.
- **D.** The wavelength decreases, and the speed increases.

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/116761/*