If an x-ray beam of wavelength 1.4 × 10-10 m makes an angle of 30° with a set of planes in a crystal causing first order constructive interference, what is the plane spacing?
A) 0.28 nm
B) 0.070 nm
C) 0.32 nm
D) 0.16 nm
E) 0.14 nm
E
Physics & Space Science
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In the closed universe model, the geometry of spacetime in two dimensions resembles the surface of a:
A) flat piece of paper. B) saddle. C) cylinder. D) sphere. E) pyramid.
Physics & Space Science
The principle of equipartition of energy states that the internal energy of a gas is shared equally:
A. among the molecules B. between kinetic and potential energy C. among the relevant degrees of freedom D. between translational and vibrational kinetic energy E. between temperature and pressure
Physics & Space Science
In glass, which of the following colors of light travels fastest?
a. red b. blue c. yellow d. All three of the above travel at the same speed.
Physics & Space Science
______________ waves cannot be polarized
Fill in the blank(s) with correct word
Physics & Space Science