Calculate the energy of a photon with a wavelength of 5.00 x 10 ^ 4 nm   a. 3.98 x 10 ^ - 34 J b. 3.98 x 10 ^ -15 J c. 3.98 x 10 ^ - 12 J d. 3.98 x 10 ^ - 21 J

When a metal was exposed to photons at a frequency of 1.31 x 105 s-', electrons were emitted with a maximum kinetic energy of 3.80 × 10-19 J. Calculate the work function, D, of this metal. J/photon What is the maximum number of electrons that could be ejected from this metal by a burst of photons (at some other frequency) with a total energy of 8.97 × 10-7 J? number of electrons:

What is the frequency of a photon if its wavelength is 2.15 x 104 angstroms? O 1.26 X 1013s-1 O 1.40 X 1014 s-1 O 2.15 X 10-6 s1 O 1.82 X 1019s-1

The figure below provides the approximate frequency and wavelength values for different types of electromagnetic radiation.  What is the wavelength and radiation type corresponding to a photon with an energy of 2.23 × 10–16 J?  (picture attached) A. 6.69 x 10–8 m, ultraviolet light B. 3.36 x 10–17 m, gamma rays C. 1.12 × 109 m, ultraviolet light D. 8.91 × 10–10 m, X-rays

8. If you have light that travels with a frequency of 9x1012 Hz. What is the energy of this light?

18. How many photons does 3.677 × 10-20 kJ energy from green light (2. = 486.15 nm) have? Select one: O a.89.99 O b.90. C. 90.00 O d.6.022 x 10²3 e. 90

t t ot pt pt pt 1 pt 1 pt 1 pt 1 pt 1 pt 1 pt nent An advertising sign gives off blue light and yellow light. a. Which light has higher-energy photons? Oblue Oyellow blue - 570 nm Oyellow-490 nm blue - 490 nm yellow - 570 nm b. One of the colors has a wavelength of 570 nm, and the other has a wavelength of 490 nm. Which color has which wavelength? (Select all that apply.) c. Which light has the higher frequency? O blue Oyellow Submit Answer Try Another Version [References] 10 item attempts remaining the new Term Cengage Learning Cengage Technical Support Previous