Poll

President Donald Trumps presidency will be:
Excellent
Great
Neither good nor bad
Bad
Terrible
If you would like to vote in this poll, please login or register

Previous poll results: Where do you get your textbooks?
D
A beam of light with a frequency range of 3.01 × 1014 Hz - 6.10 × 1014 Hz is incident on a metal surface. If the work function of the metal surface is 2.20 eV, what is the range of frequencies in this beam of light that will be responsible for ejecting electrons from this metal surface?
A) 1.12 × 1014 Hz - 5.31 × 1014 Hz
B) 1.12 × 1014 Hz - 3.10 × 1014 Hz
C) 3.01 × 1014 Hz - 6.10 × 1014 Hz
D) 5.31 × 1014 Hz - 6.10 × 1014 Hz
E) None
C
Light with a frequency of 8.70 × 1014 Hz is incident on a metal that has a work function of 2.8 eV. What is the maximum kinetic energy that a photoelectron ejected in this process can have?
A) 8.71 × 10-19 J
B) 3.11 × 10-19 J
C) 1.28 × 10-19 J
D) 2.41 × 10-19 J
E) 4.52 × 10-19 J
E
Light with a wavelength of 310 nm is incident on a metal that has a work function of 3.8 eV. What is the maximum kinetic energy that a photoelectron ejected in this process can have?
A) 0.62 × 10-19 J
B) 0.21 × 10-19 J
C) 0.36 × 10-19 J
D) 0.48 × 10-19 J
E) 0.33 × 10-19 J
D
What is the longest wavelength of light that can cause photoelectron emission from a metal that has a work function of 2.20 eV?
A) 417 nm
B) 257 nm
C) 344 nm
D) 564 nm
E) 610 nm
E
The work function of a certain metal is 1.90 eV. What is the longest wavelength of light that can cause photoelectron emission from this metal?
A) 231 nm
B) 14.0 nm
C) 62.4 nm
D) 344 nm
E) 653 nm

Explore

Post homework questions online and get free homework help from tutors.
Learn More
Improve Grades
Help Others
Save Time
Accessible 24/7
There are currently 1047 guests browsing and 66 members online. So far today, 605 students have registered.

Gallery

393
0
04/07/13

4281
0
01/18/16

1950
0
12/06/14

260
5
01/26/15

258
5
01/20/15

767
0
08/24/15