22 Cards in this Set
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The south pole of a magnet points toward the Earth's
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South Pole
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A charged particle moves and experiences no magnetic force. From this we can conclude that
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Either no magnetic field exists or the particle is moving parallel to the field
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In a Young's double slit experiment, if the separation between the slits decreases, what happens to the distance between the interference maximums?
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It increases
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A charged particle is injected into a uniform magnetic field such that its velocity vector is perpendicular to the magnetic field vector. Ignoring the particle's weight, the particle will
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Follow a circular path
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Two long parallel wires placed side-by-side on a horizontal table carry identical size currents in opposite directions. The wire on your right carries current toward you, and the wire on your left carries current away from you. From your point of view, the magnetic field at the point exac…
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Points down
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The primary coil of an ideal transformer has 200 turns and its secondary has 100 turns. If the input voltage to the primary is 100 V, we can expect the output voltage of the secondary to be
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50V
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An object is placed at a concave mirror's center of curvature. The image produced by the mirror is located
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At the center of curvature
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The critical angle for a beam of light passing from water into air is 48.8°. This means that all light rays with an angle of incidence greater than this angle will be
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Totally reflected
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According to Lenz's law, the direction of an induced current in a conductor will be that which tends to produce which of the following effects?
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Oppose the effect which produces it
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A plane mirror forms an image that is
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Virtual and upright
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A circular wire ring is situated above a long straight wire, as shown in Figure 21.19. The straight wire has a current flowing to the right, and the current is increasing in time at a constant rate. Which statement is true?
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There is an induced current in the wire ring, directed in the clockwise orientation
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At the second maxima on either side of the central bright spot in a double-slit experiment, light from
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One opening travels two wavelengths of light farther than light from the other opening.
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A vertical wire carries a current straight down. Directly the right of this wire, the magnetic field points
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Out of the page
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A horizontal wire carries a current straight toward you. From your point of view, the magnetic field caused by this current
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Circles the wire in a counter-clockwise direction
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A convex lens has focal length f. An object is placed beyond 2f on the axis. The image formed is located
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Between f and 2f
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What fundamental fact underlies the operation of essentially all electric motors?
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A current-carrying loop placed perpendicular to a magnetic field will experience a torque
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A single convex spherical mirror produces an image which is
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Always virtual
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If a single lens forms a virtual image of an object, then
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The lens could be either a diverging or converging lens
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For all transparent material substances, the index of refraction
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Is greater than 1
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In the figure above, a coil of wire is placed on the axis of a solenoid carrying a DC current. Which of the following will NOT result in an EMF being induced in the coil?
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Rotate the coil about the z-axis
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At a particular instant, an electron moves to the right at speed v in a uniform magnetic field that is directed straight downward. The magnetic force that acts on it is
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Directed out of the page
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What principle is responsible for light spreading as it passes through a narrow slit?
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Diffraction
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PHYS 202: Exam 1