Optics Question 317
Question: The wavelength 21 cm emitted by atomic hydrogen in interstellar space belongs to
Options:
A) Radio waves
B) Infrared waves
C) Microwaves
D) g-rays
Show Answer
Answer:
Correct Answer: A
Solution:
Radio waves
A) Radio waves
B) Infrared waves
C) Microwaves
D) g-rays
Correct Answer: A
Radio waves
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