A monochromatic beam of light in air has a wavelength of 427 nm in air. It passes through glass (n = 1.52) and then through carbon disulfide (n = 1.63). What is its wavelength in the carbon disulfide?
a. 262 nm
b. 696 nm
c. 398 nm
d. 458 nm
e. 281 nm
a
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According to current understanding, what is a quasar?
A) an active galactic nucleus that is particularly luminous B) a large galaxy thought to be formed by the merger of several smaller galaxies, typically found in the center of a galaxy cluster C) Any object with an extremely large redshift is called a quasar. D) a galaxy with an unusually high rate of star formation
If two electrons in an atom have the same energy, then they must have the same four quantum numbers
A) True B) False C) They cannot both have the same energy.
In the third step of the p-p fusion chain, a _____________ is fused with a _______________ to generate a ________________ with _____________ and _______________ as byproducts
Fill in the blank(s) with correct word
The Earth's axis tilt has changed little over its history due to
A) the stabilizing effects of Jupiter's gravity B) the stabilizing effects of the Sun's gravity C) the stabilizing effects of the Moon's gravity D) its rapid rotation