Calculate the wavelength of light in vacuum that has a frequency of 2.0 times 10

Question

Calculate the wavelength of light in vacuum that has a frequency of 2.0 times 107 Hz. M What is its wavelength in benzene? M Calculate the energy of one photon of such light in vacuum. Express the answer in electron volts. eV What is the properties of and effect on the energy of the photon when it enters the benzene? (Select all that apply.) the energy goes down the energy is not proportional to the frequency the energy goes up the energy is inversely proportional to the frequency the energy is proportional to the frequency the energy does not change

Explanation / Answer

(a) wavelength = speed / freq = 3.00 x 108 / 2.0 x107   =   15.0 m . (b) wavelength in benzene = originalwavelength / index of refraction = 15.0 / 1.501 =   9.993m . (c) energy = plancks constant * freq =  4.14 x 10-15 eV-s * 2 x 107=   8.28 x10-8 eV . (d) only the last two:    energy is proportional tofreq     energy does not change

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.