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A photon has an energy of E1= 1.0x10^-20 J. A second photon has twice the wavelength as the first photon. Which of the following regarding the second photon is true?
A. E2= (1/2)E1
B. E2= E1
C. E2= 2E1
D. E2= 3E1
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- 9. T/F a. Perfect absorbers of electromagnetic radiation are also perfect emitters. b. At any instant in time, it is possible to specify simultaneously the position and the momentum of a particle to arbitrarily high precision. C. The ground state is the lowest energy level in an atom. d. Certain types of sunglasses are very effective at diminishing light reflected from surfaces because of polarization. e. A light ray bends when it goes from one medium to another because of diffraction.A bullet from a .357 Magnum has a mass of 11.66 gms and a muzzle velocity of 387 m/s. What is the de Broglie wavelength of the bullet? Select one: a. 2.34 x 10-35 m b. 1.47 x 103 m c. 1.47 x 10-34 m d. 2.34 x 102 mIf the wavelength of a photon in vacuum is the same as the de Broglie wavelength of an electron, which one is traveling faster through space? a The photon because photons always travel through space faster than electrons. b The electron because it has more mass. c They both have the same speed.
- Which of these expressions would yield the wavelength of light in meters emitted when an electron drops from orbit n = 3 to n = 2 in a Bohr hydrogen atom? Given h = 4.14 x 10-15 eVs and c = 3.00 x 108 m/s. a. 1.89/hxc b. hc/1.89 c. 1.89 x h x c d. (1.51 + 3.4)/hc e. hc/3.4(a) Calculate the wavelength of light in vacuum that has a frequency of 5.06 x 10 18 nm (b) What is its wavelength in flint glass? nm (c) Calculate the energy of one photon of such light in vacuum. Express the answer in electron volts. eV (d) Does the energy of the photon change when it enters the flint glass? The energy of the photon changes. The energy of the photon does not change. Hz. Explain.A photon of light has a frequency of 5.00 x 1014 Hz. If the frequency of the photon was doubled then which of these would happen to the energy of this photon? a. it would become one-fourth as much b. it would become half as much c. it would double d. it would quadruple e. it would triple