Answer to Question 1
Answer: Ultraviolet light (UV) is in the range of frequencies that resonate with atoms and molecules in the glass. At resonance, the amplitudes of vibration are very large and atoms and molecules hold onto UV energy for millions of vibrations, during which time the energy is passed to neighboring atoms by many collisions. The transmitted energy takes the form of thermal energy instead of light. So although glass is transparent to visible light, it isn't to UV.
Answer to Question 2
Answer: According to the model of light presented in the text, when a photon is incident on a glass surface it is absorbed by a glass molecule or atom and forced into vibration. This vibration results in the emission of an indistinguishable photon, which travels to the next atom or molecule to repeat the process. A cascading process of absorption and reemission occurs until the glass molecule at the far surface absorbs and reemits an identical photon.
Absorption of light energy by an electron
Phytochrome controls germination by responding to red/far red light signals.
Absorbance of Light by Rods and Cones
A very light ideal spring stretches by when it is used to hang a 135-N object. What is the ...
In the retina, there are two types of light receptor cells: Rods are sensitive to differences in lig
Light-independent reactions of photosynthesis