If a Ray of Light Passes from Air into Glass

question 77

Multiple Choice

If a ray of light passes from air into glass, the angle of incidence will be

• A) less than the angle of refraction.
• B) sometimes greater and sometimes less than the angle of refraction.
• C) greater than the angle of refraction.
• D) equal to the angle of refraction.

---

Definitions:

Tetanic Contractions

Sustained muscle contractions that occur when the muscles do not relax between stimuli, leading to a smooth and steady contraction.

Depolarization

The process in which a cell's membrane potential becomes less negative, leading towards an action potential in nerve and muscle cells.

Heart Rate

is the number of heartbeats per unit of time, usually per minute, indicating cardiovascular fitness and overall health.

Myocardial Infarction

A medical condition also known as a heart attack, caused by the interruption of blood flow to the heart muscle.