A Radio Telescope 200 M in Diameter Is Used to Investigate

question 9

Multiple Choice

A radio telescope 200 m in diameter is used to investigate sources emitting a 21-cm wavelength wave.What is the minimum angular separation of the sources that can be resolved by this system?

• A) 0.073°
• B) 0.030°
• C) 0.0013°
• D) 0.154°
• E) 0.0026°

---

Definitions:

Andrew Wakefield

A discredited former British doctor whose fraudulent study falsely linked the MMR vaccine to autism, leading to a significant public health scare.

Autism

A developmental disorder characterized by difficulties in social interaction, communication, and by restricted or repetitive patterns of thought and behavior.

Vowel-Like Sounds

Basic sound units produced by the human voice, forming the constituents of syllables and words, used in early speech development.

Cognitive Development

The development and transformation of cognitive skills, including the capacity for thought, logic, and comprehension.