Top Posters
Since Sunday
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
r
4
Home Q & A Board Science-Related Homework Help Physics
New Topic  
doit_the_clown doit_the_clown
wrote...
Go to Answer
Posts: 1408
Rep: 0 0
7 years ago
Light leaving a point source spreads out so that the apparent brightness I of light per unit area varies with distance d according to which of the following laws ( means “proportional to”)?
   A)  I = constant    B)  I  1/d2    C)  I  d2    D)  I  1/d
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
Read 121 times
1 Reply
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
Replies
Answer verified by a subject expert
discovererdiscoverer
wrote...
#1
Top Poster
Posts: 1374
Rep: 30 0
7 years ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here
1

Related Topics

doit_the_clown Author
wrote...

7 years ago
Just got PERFECT on my quiz
patod1
wrote...

Yesterday
Thanks
larrybrads
wrote...

2 hours ago
Helped a lot
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1290 People Browsing
 117 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 270
  
 287
  
 38
Your Opinion
Which is the best fuel for late night cramming?
Votes: 145
Previous poll results: Which country would you like to visit for its food?