What is the minimum temperature for a cloud to excite emission lines from H2?
A) 10 K
B) 30 K
C) 100 K
D) 300 K
E) 1000 K
Answer: C
What is the minimum temperature for a cloud to excite emission lines from H2?
A) 10 K
B) 30 K
C) 100 K
D) 300 K
E) 1000 K
Answer: C