What happens in the process of fluorescence? a. water molecules are broken up into hydrogen and oxygen b. atoms absorb ultra violet rays and convert them to visible light as their electrons cascade to lower energy levels c. hydrogen is transformed into helium, where gas is very very hot d. radio waves are given off as molecules change their vibration or rotation e. fluorine gas is released by chemical reactions in the outer layer of a star

An FM radio station broadcasts electromagnetic radiation at a frequency of 90.2 MHz. The wavelength of this radiation is  A. 2.71 × 1010 B. 2.71 × 1016 C. 0.301 D. 3.33 E. 3.33 × 106

IR-Absorption is different from Atomic line spectra because a. a photon is absorbed but not emitted this frequency range b. a photon is emitted but not absorbed in this frequency range c. it affects electrons that are more closely held towards the atomic core of the atom d. it involves higher energy and shorter wavelengths e. the energy transitions are not related to the electron orbitals

By which process does a molecule absorb light?   A An electron goes from a higher energy level to a lower energy level.     B An isotope goes from a lower energy level to a higher energy level.     C An electron goes from a lower energy level to a higher energy level.   D A proton goes from a higher energy level to a lower energy level.     E An isotope goes from a higher energy level to a lower energy level.     F A proton goes from a lower energy level to a higher energy level.

The source of a wave is moving at 40 vibrations per second. What is the frequency of the wave it produces? A. 1 hz B. 40 hz C. 20 hz D. 80 hz

what type of light on the electromagnetic spectrum has the lowest energy per photons? A-radiowaves B-visible light c-all light has the same energy d-microwaves e -gamma waves

Consider the four scenarios involving visible light. In scenario A, visible light has a wavelength of 724.6 nm. Determine its frequency, energy per photon, and color. frequency: The visible light in scenario A is energy per photon: J blue. red. In scenario B, visible light has a frequency of 5.526 x 1014 s-1. Determine its wavelength, energy per orange. wavelength: nm photon, and color. yellow. violet. The visible light in scenario B is green. energy per photon: J In scenario C, visible light is in the middle of the yellow region of the visible spectrum. Estimate its wavelength, wavelength: nm frequency, and energy per photon. frequency: s-1 energy per photon: In scenario D, visible light has a photon energy of 4.325 x 10-19 J. Determine its wavelength, frequency, wavelength: nm and color. The visible light in scenario D is frequency: s-1

Which color of visible light has the highest frequency? Green Yellow Orange Red

Which of the following explanations BEST describes how an atom emits color? O A. Protons jump to higher energy levels and specific wavelengths are emitted as the protons return to the ground state. O B. Protons jump to higher energy levels and specific wavelengths are emitted as the protons move to the excited state. O C. Electrons jump to higher energy levels and specific wavelengths are emitted as the electrons return to the ground state. O D. Electrons jump to higher energy levels and specific wavelengths are emitted as the electrons move to the excited state. novo DII %23 & 3 e r t u i d f j k C b n m alt