A Ray of Light Travels Across a Liquid-To-Glass Interface

question 1

Multiple Choice

A ray of light travels across a liquid-to-glass interface.If the indices of refraction for the liquid and glass are,respectively,1.74 and 1.41,what is the critical angle at this interface?

• A) Critical angle does not exist.
• B) 72.9°
• C) 54.1°
• D) 0.94°
• E) ​90°

---

Definitions:

Blood Pressure

The force of circulating blood against the walls of blood vessels, measured as systolic and diastolic pressure and vital for diagnosing cardiovascular health.

Pulse Oximetry

A noninvasive method for monitoring a person's oxygen saturation in the blood.

Respirations

The act or process of inhaling and exhaling air in order to exchange oxygen for carbon dioxide in the body's cells.

IV Infusion

The administration of liquid substances directly into a vein through an intravenous line as a therapeutic treatment.