Ask
your own question, for FREE!
Physics
23 Online
OpenStudy (anonymous):
how many photons with 10 ev are required to produce 20 joules of energy A. 2000 B. 3.2x10^18 C. 1.2X10^19 D. 3.3x10^19 E. 1.2X10^20
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
1eV=1.6*10^-19J no of photons = total energy/energy in 1 photon
OpenStudy (anonymous):
i dont understand
OpenStudy (anonymous):
well, the energy of 1 photon is =10eV =10*1.6*10^-19 J =1.6 *10^-18J And total energy to be produced is given = 20J So how many photons would u require to produce this much energy. Just divide the total energy to be produced by energy associated with a single photon.
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
lovelove1700:
u00bfA quu00e9 hora es tu clase?Fill in the blanks Activity unlimited attempts left Completa.
glomore600:
find someone says that that one person your talking to doesn't really like you should I take their advice and leave or should I ask the person i'm talking t
Addif9911:
Him I dimmed the light that once felt mine, a glow I never meant to lose. I over-read the shadows, let voices crowd the room where only two hearts shouldu20
EdwinJsHispanic:
Poem to my mom who proved my point "You proved my point, I am a failure. but I kinda wish, you were my savior.
Wolfwoods:
The Modern Princess "you spoke so softly to me, held me close when no one else did, loved me in a way no one else dared to.
Wolfwoods:
The Pain Of Waiting "The short story would be that we fell in love, you left and I continued to wait for you.
notmeta:
balance the following equation - alumoinum chlorate --> alumninum chloride + oxyg
lovelove1700:
u00bfA quu00e9 hora es tu clase?Fill in the blanks Activity unlimited attempts left Completa.
4 hours ago
0 Replies
0 Medals
glomore600:
find someone says that that one person your talking to doesn't really like you should I take their advice and leave or should I ask the person i'm talking t
8 hours ago
5 Replies
0 Medals
Addif9911:
Him I dimmed the light that once felt mine, a glow I never meant to lose. I over-read the shadows, let voices crowd the room where only two hearts shouldu20
1 day ago
4 Replies
0 Medals
EdwinJsHispanic:
Poem to my mom who proved my point "You proved my point, I am a failure. but I kinda wish, you were my savior.
2 days ago
6 Replies
2 Medals
Wolfwoods:
The Modern Princess "you spoke so softly to me, held me close when no one else did, loved me in a way no one else dared to.
2 days ago
11 Replies
3 Medals
Wolfwoods:
The Pain Of Waiting "The short story would be that we fell in love, you left and I continued to wait for you.
3 days ago
7 Replies
2 Medals
notmeta:
balance the following equation - alumoinum chlorate --> alumninum chloride + oxyg
3 days ago
4 Replies
1 Medal