When you look at a single slit diffraction pattern produced on a screen by light of a single wavelength, you see a bright central maximum and a number of maxima on either side, their intensity decreasing with distance from the central maximum. If the width of the slit is decreased,
a. the pattern shrinks in size. (central maximum less wide; other maxima in closer to it)
b. the pattern increases in size. (central maximum wider; other maxima farther from it)
c. it does not affect the size of the pattern.
d. the width of the central maximum increases, but the other maxima do not change in position or width.
e. the width of the central maximum decreases, but the other maxima do not change in position or width.
b
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The moment of inertia about the x axis of the L-shaped figure in Problem 5.5 is:
(A) 24 in.4 (B) 32 in.4 (C) 38 in.4 (D) 44 in.4
A superconducting wire carries a current of 7.0 kA. Find the magnetic field at a distance of 1.5 m from the wire. (µ0 = 4? × 10^?7 T?m/A)
a. 9.3E–4 T b. 3.0E–4 T c. 2.9E–3 T d. 1.5E–3 T e. 5.9E–3 T
A violation of the second law of thermodynamics would occur if
a. a ball lying on the ground spontaneously moved to the top of a desk. b. an object with low temperature transferred energy in the form of heat to an object with a higher temperature. c. a motion picture was run backwards through the projector. d. any of the above occurred. e. (a) or (b) occurred, but not (c).
What is the magnitude of the momentum of a proton moving at 0.95 c? 
A. 
B. 
C. 
D. 
E. 