Which of the Following Statements Is True

question 32

Multiple Choice

Which of the following statements is true?

• A)Maxwell's equations apply only to fields that are constant in time.
• B)Electromagnetic waves are longitudinal waves.
• C)The electric and magnetic fields are out of phase in an electromagnetic wave.
• D)The electric- and magnetic-field vectors and are equal in magnitude in an electromagnetic wave.
• E)None of these statements is true.

---

Definitions:

Urinary Tract Infection

An infection in any part of the urinary system, including the kidneys, ureters, bladder, and urethra, commonly caused by bacteria.

Bacteria

Microscopic single-celled organisms that inhabit virtually all environments, including soil, water, organic matter, and the bodies of multi-cellular animals.

Urine Specimen

A sample of urine collected for medical testing to diagnose or monitor health conditions.

Kidneys

A pair of organs in the vertebrates' body that filter waste products from the blood and excrete them, along with water, as urine.