Which of the following does not describe a method of achieving polarization?
1.Light hits a reflective surface at a particular angle, dependent on wavelength and index of refraction. The light which reflects is polarized in one direction, and the light which is transmitted is polarized perpendicular to the reflected light.
2.Unpolarized light encounters material made of parallel long-chain molecules. The portion of the light in line with the chains is transmitted; the rest is absorbed.
3.Light collides with air or other gas molecules, which absorb the energy. Electrons inside the molecule begin to vibrate, emitting polarized light much like a radio antennae.
4.Light is sent through an optically active material.
4
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_________is uniform removal of metal from a part to produce a smooth surface by using electrochemical techniques.
Fill in the blank(s) with the appropriate word(s).
In a visual binary system with circular orbits, if in 20 years the two stars' position angles have shifted by 30 degrees, the pair's period must be:
A) 60 years. B) 90 years. C) 120 years. D) 240 years. E) 360 years.
If CP for an ideal gas is 35.4 J/mol?K, which of the following is CV for this gas?
A. 12.5 J/mol?K B. 20.8 J/mol?K C. 29.1 J/mol?K D. 27.1 J/mol?K E. 43.4 J/mol?K
A proton starting from rest travels through a potential of 1.0 kV and then moves into a uniform 0.040-T magnetic field. What is the radius of the proton's resulting orbit? (mproton = 1.67 × 10-27 kg, e = 1.60 × 10-19 C)
A) 0.080 m B) 0.11 m C) 0.14 m D) 0.17 m E) 0.19 m