A Flashlight Beam Makes an Angle of 60° with the Plane

question 93

Multiple Choice

A flashlight beam makes an angle of 60° with the plane of the surface of a calm lake before it enters the water.In the water what angle does the beam make with the plane of the surface? The index of refraction of water is 1.33.

• A)0°
• B)30°
• C)60°
• D)22°
• E)68°

---

Definitions:

Tyrosine

An amino acid that is important in the synthesis of proteins and neurotransmitters within the body.

Sulfa

Refers to sulfonamides, a group of antibiotics that are used to treat bacterial infections by inhibiting bacterial growth.

Pathologic State

A condition or phase of disease differing from normal health due to the presence of pathological processes.

Decolorizer

A chemical used in staining procedures in microbiology to remove excess stain, helping differentiate between types of cells or parts of cells.