The critical angle for sapphire surrounded by air is 34.4°. Calculate the polarizing angle for sapphire
a. 60.5°
b. 59.7°
c. 58.6°
d. 56.3°
a
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Size of the Nucleus: Estimate the radius (in fm) of a radon nucleus that contains 86 protons and 136 neutrons.
Fill in the blank(s) with the appropriate word(s).
What is true of galaxies at the larger redshifts compared to ones nearby?
A) They are mostly giants. B) They are redder. C) They appear smaller and more irregular. D) They are almost all ellipticals. E) They appear larger and more regular.
Which best describes a system made up of ice, water and steam existing together?
a. absolute zero b. triple point c. ice point d. steam point
Each pattern shown below would appear on a screen when monochromatic light first passes through a narrow slit of width a and then strikes a screen. The darkest areas on the page represent the brightest areas on the screen. In which case is the slit illuminated with light of the shortest wavelength?
a.
b.
c.
