Light Enters the Smooth,flat Surface of a Block of Glass

question 33

Multiple Choice

Light enters the smooth,flat surface of a block of glass from the vacuum of space (e.g.,a spacecraft window) .What is the speed of light inside the glass compared with that in a vacuum?

• A) The speed will depend on the angle that the light ray makes with the perpendicular to the surface, becoming slower as the angle increases.
• B) The speed will be the same because the speed of light is always constant, by definition.
• C) The speed will be faster because the glass is denser than the vacuum.
• D) The speed will be slower because the glass is denser than the vacuum.

---

Definitions:

Data Fields

Components of a data structure or record that are intended to hold data for processing.

Data Types

Categories of data that define the operations that can be done on them and the type of data they can store (e.g., integer, float, string).

Structure's Form

Describes the layout or arrangement of components within a data structure, defining how data is organized and accessed.

Symbolic Names

Identifiers that represent variables, functions, or other entities in code, making the program easier to read and maintain.