To determine an unknown crystal structure, it would be best to use
(a) The Debye-Scherrer camera
(b) The Laue technique
(c) A powder diffractometer
(d) A single-crystal diffractometer
(d) A single-crystal diffractometer
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A spectrograph spreads out light according to ____ to form a spectrum
a. wavelength b. frequency c. interference d. aberration e. grating
A ball is subjected to a pressure of 2.0 atmospheres. The un-squeezed diameter of the ball is 10.0 cm. The squeezed diameter of the ball is 9.999 cm. The bulk strain on the ball is
a. 
b. 
c. 
d. 
e. 
A light bulb used in a slide projector draws a current of 6 amperes when operating on 120 volts.The resistance of the light bulb is __________
Fill in the blank(s) with correct word
A beam of red light and a beam of violet light each deliver the same power on a surface. For which beam is the number of photons hitting the surface per second the greatest?
A) the red beam B) the violet beam C) The number of photons per second is the same for both beams. D) This cannot be answered without knowing just what the light intensity is.