• Support PF! Buy your school textbooks, materials and every day products via PF Here!

GRE (physics) practice problems

1
0
Hey, I think it would be beneficial for many if we started a thread that contained several problems (and hopefully solutions as well) that would be helpful in studying for the GRE. So, everyone, add a problem if you can (with solution!).
I'll go first:

Problem:
A sample of N atoms of helium gas is confined in a 1.0 cubic meter volume. The probability that none of the helium atoms is in a $1\times 10^{-6}$ cubic meter volume of the container is:
(a) 0
(b) (10^{-6})^N
(c) (1-10^{-6})^N
(d) 1-(10^{-6})^N
(e) 1


Solution:
(c)
 
743
4
It would be more helpful if you can show how You arrived at that solution. :biggrin:
 

Related Threads for: GRE (physics) practice problems

Replies
4
Views
7K
  • Posted
Replies
7
Views
3K
  • Posted
Replies
7
Views
3K
Replies
7
Views
1K
  • Posted
Replies
1
Views
2K
  • Posted
Replies
3
Views
3K
Replies
1
Views
1K
Replies
1
Views
932

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving
Top