Why Do Astronomers Seek to Measure Gravitational Waves Simultaneously with at Least

question 27

Multiple Choice

Why do astronomers seek to measure gravitational waves simultaneously with at least three detectors?

• A) in order to measure their amplitude
• B) because the waves evolve as they pass through Earth
• C) because the waves have wavelengths much larger than Earth
• D) in order to pinpoint the direction of their source

---

Definitions:

Percentage

A mathematical term expressing a number or ratio as a fraction of 100, used to compare proportions.

Aphasic

Pertaining to aphasia, a condition characterized by the loss of the ability to understand or express speech, caused by brain damage.

Apraxic

Refers to the impairment in the ability to perform movements or gestures, despite having the physical ability to do so, usually due to brain damage.

Posterior Lesions

Damage or abnormalities found on the back part of an organ or the body, often referring to areas in the brain or spinal cord.