Single Answer MCQ
Q-00040346
What impact does atmospheric refraction have on star visibility?
1
All stars appear the same brightness.
2
Stars seem to vary in brightness.
3
Some stars disappear completely.
4
Stars can only be seen in certain seasons.
Answer and Solution
Answer
B. Stars seem to vary in brightness.
Solution:
Atmospheric refraction causes variations in the amount of starlight that reaches the observer, resulting in a flickering effect that makes stars seem to vary in brightness.
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