stsfrost6416 stsfrost6416
  • 21-08-2017
  • Physics
contestada

What is the work function of cadmium metal if light with = 9.85×1014hz is necessary to eject electrons?

Respuesta :

barnuts
barnuts barnuts
  • 04-09-2017

We use the Planck’s formula:

E = hv

where,

E = energy, h = planck’s constant = 6.6x10^-34 J s, v = frequency in Hz (Hz = 1 / s)

 

Subsituting the values to find for E:

E = (6.6×10^-34 J s) * 9.85×10^14 / s

E = 6.5x10^-19 J

Answer Link

Otras preguntas

How do you write 3,500 in scientific notation
What is the significance of the Venus figurines ?
What is the rising action of tuck everlasting
What is the mountain range located in the stages of California and Nevada between the California Central Valley and the basin and range province
The Speedy Fast Ski Resort has started to keep track of the number of skiers and snowboarders who bought season passes.The Ratio of the number of skiers who bou
Can some one explain this me
what is 30 less than 4 times a number is equal to 14
Is g(s)=4s^2/3 an odd function?
why are atoms considered the basic unit of matter
Celia and Ryan are starting a nutrition program. Celia currently consumes 1200 calories a day and will increase that number by 100 calories each day. Ryan curre