Light of wavelength 687 nm is incident on a single slit 0.75 mm wide
At what distance from the slit should a screen be placed if the second dark fringe in the diffraction pattern is to be 1.7 mm from the center of the diffraction pattern?
A) 0.39 m B) 1.9 m C) 1.1 m D) 0.93 m E) 0.47 m
D
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An electron and a proton are each released from rest in the same uniform electric field. The electron moves a distance delectron and the proton moves a distance dproton as each particle's kinetic energy increases by 1.6 eV. How do delectron and dproton compare?
a. delectron < dproton b. delectron > dproton c. delectron = dproton d. The answer depends on the direction of the electric field.
Transverse waves travel with a speed of 283 m/s along a taut copper wire that has a diameter of 1.50 mm. What is the tension in the wire? (The density of copper is 8.93 g/cm3.)
a. 1890 N c. 631 N b. 1260 N d. 315 N
Case-control studies that attempt to determine which of the following are especially subject to recall bias?
What will be an ideal response?
A heat engine that would take in 1000 J of heat from a reservoir at 500 K and exhaust 500 J to a reservoir at 300 K, converting the other 500 J of heat to work, is
A. thermodynamically possible. B. not thermodynamically possible. C. possible only for a Carnot cycle.