What is the wavelength of a monochromatic light beam, where the ...

[ericka1]

What is the wavelength of a monochromatic light beam, where the photon energy is 2.00 eV? (h = 6.63  10-34 Js, c = 3.00  108 m/s, 1 nm = 10-9 m, and 1 eV = 1.6  10-19 J)
 a. 414 nm
  c. 311 nm
  b. 1243 nm
  d. 622 nm

Question 2

What is the wavelength of a monochromatic light beam, where the photon energy is 4.81  10-19 J? (h = 6.63  10-34 Js, c = 3.00  108 m/s, and 1 nm = 10-9 m)
 a. 354 nm
  c. 787 nm
  b. 414 nm
  d. 398 nm

[sarah_brady415]

Answer to Question 1

D

Answer to Question 2

B