How is light transmitted through glass?
What will be an ideal response?
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 forces it to vibrate. 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 the photon.
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Which of the following statements is false?
A) After hitting a peak around 1970, the world NIR has been declining steadily through the late twentieth century and the early twenty-first B) Between 1980 and 2010, the CBR declined in most of Western Europe C) In most countries, the decline in the NIR has occurred because of lower birth rates D) Western Europe has always emphasized the availability of contraceptives rather than education and improved health care to bring down CBRs E) Countries with high NIR rates tend to have lower literacy rates compared to those with low NIR
Why does Basaltic magma have the lowest viscosity?
A) Basaltic lava has more silicate. B) Basaltic lava has less silicate. C) Basaltic lava is hotter than other flows. D) Basaltic lava is less hot than other flows.
Without regular cleanups, the tendency of a home or dorm room to become increasingly messy generally reflects
A) the Law of Conservation of Energy. B) an increase in entropy. C) the loss of heat in any energy conversion. D) the conversion of kinetic energy into potential energy.
Waste is a large contributor to climate change due to the GHG emission associated with landfilling or incineration. Landfills are the 3rd largest source of which GHG?
A. water vaopr B. VOCs C. carbon dioxide D. methane