Liquid crystal displays make use of
a. interference
b. diffraction
c. specular reflection
d. diffuse reflection
e. polarization
E
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A rad is that amount of radiation that:
a. produces 2.08 × 10^9 ion pairs per cm3 in air under standard conditions. b. deposits 8.76 × 10^–3 J of energy into 1 kg of air. c. deposits 10–2 J of energy into 1 kg of absorbing material. d. is also known as a rem.
The superposition principle has to do with which of the following?
a. effects of waves at great distances b. the ability of some waves to move very far c. how displacements of interacting waves add together d. relativistic wave behavior
The 99 years that revolutionized Astronomy ended with whose death?
a. Aristotle b. Kepler c. Tycho d. Copernicus e. Galileo
La Paz, Bolivia, is at an altitude of 3,650 meters above sea level. In La Paz, water will boil
A) at 100°C. B) below 100°C. C) above 100°C. D) There is not enough information to answer this question.