Top Posters
Since Sunday
14
o
6
6
G
3
c
3
q
3
m
3
j
3
s
2
b
2
j
2
u
2
Home Q & A Board Science-Related Homework Help Physics
New Topic  
illfavor illfavor
wrote...
Go to Answer
Posts: 43
Rep: 0 0
11 years ago
Find the energy of a photon with an associated wavelength of 5.6 x 10?7 m.

You know Planck's constant is 6.6 x 10?34 J ? sec but I am confused about arithmetic...

Plz help...
Read 550 times
3 Replies
Replies
Answer accepted by topic starter
irinairina
wrote...
#1
Top Poster
Posts: 919
Rep: 26 0
11 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

wrote...
#2
11 years ago
from hc/ lambda, the answer is 3.55*10^-19 J, or 2.22 eV
wrote...
#3
11 years ago
E=hc/lambda
since u got all unknowns
and c= 3*10^8
u just evaluate
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1164 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 327
  
 295
  
 1566
Your Opinion
Which of the following is the best resource to supplement your studies:
Votes: 300
Previous poll results: How often do you eat-out per week?