A metal has a work function of 4.50 eV. Find the maximum kinetic energy of the photoelectrons if light of wavelength 250 nm shines on the metal. (1 eV = 1.60 Γ 10β19 J, c = 3.00 Γ 108 m/s, h = 6.626 Γ 10-34 J β s)
A) 0.00 eV.
B) 0.37 eV.
C) 0.47 eV.
D) 0.53 eV.
Answers: 1
Physics, 22.06.2019 01:10
If vx = 7.00 units and vy = -7.60 units, determine the magnitude of vβ . determine the direction of vβ .
Answers: 2
Physics, 22.06.2019 16:30
In a hydrogen molecule there are a total of four charges, 2 protons in the two nuclei, and 2 electrons. how many unique charge-pairs are there (without double counting)?
Answers: 3
Physics, 22.06.2019 18:30
Which word expression describes how much to calculate pressure
Answers: 1
Physics, 22.06.2019 20:10
Two cannon balls weighing 18 kg and 24 kg are chained together and fired horizontally with a velocity of 165 m/s from the top of a 21-m wall. the chain breaks during the flight of the cannonballs and the 18-kg cannonball strikes the ground at t = 1.5 s, at a distance of 240 m from the foot of the wall, and 7 m to the right of the line of fire. determine the position of the other cannonball at that instant. neglect the resistance of the air.
Answers: 1
A metal has a work function of 4.50 eV. Find the maximum kinetic energy of the photoelectrons if lig...
Business, 01.10.2019 09:20
History, 01.10.2019 09:20
History, 01.10.2019 09:20
Mathematics, 01.10.2019 09:20
History, 01.10.2019 09:20
Computers and Technology, 01.10.2019 09:20
Mathematics, 01.10.2019 09:20
History, 01.10.2019 09:20
Social Studies, 01.10.2019 09:20
Biology, 01.10.2019 09:20