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Question
Two point particles,with charges of q1and q2, are placed a distance rapart. The electric field is zero at a point P between the particles on the line segment connecting them. We conclude that:A) q1and q2must have the same magnitude and sign
B) P must be midway between the particles
C) q1and q2must have the same sign but may have different magnitudes
D) q1and q2must have equal magnitudes and opposite signs
E) q1and q2must have opposite signs and may have different magnitudes
Answer
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Related questions
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The intensity of the microwave background radiation, a remnant of the big bang:
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Any meson is a combination of:
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Q:
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Q:
In a photoelectric effect experiment at a frequency above cut off, the stopping potential is proportional to:
A) the energy of the least energetic electron before it is ejected
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D) the energy of the most energetic electron after it is ejected
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Q:
In a photoelectric effect experiment at a frequency above cut off, the number of electrons ejected is proportional to:
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Q:
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Q:
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Q:
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A particle with zero mass and energy Ecarries momentum:
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Q:
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Q:
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Q:
Pi mesons at rest have a half-life of T.If a beam of pi mesons is traveling at a speed of, the distance in which the intensity of the beam is halved is:
Q:
A train traveling very fast (v= 0.6c) has an engineer (E) at the front, a guard (G) at the rear and an observer (S') exactly half way between them. Both E and G are equipped with yellow signaling lamps. The train passes a station, closely observed by the station master (S). Both E and G use their lamps to send signals. According to both S and S' these signals arrive simultaneously at the instant S' is passing S. According to S':
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Q:
Figure (i) shows a double-slit pattern obtained using monochromatic light. Consider the following five possible changes in conditions:
1) decrease the frequency
2) increase the frequency
3) increase the width of each slit
4) increase the separation between the slits
5) decrease the separation between the slits
Which of the above would change Figure (i) into Figure (ii)? A) 3 only
B) 5 only
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D) 1 and 5 only
E) 2 and 4 only
Q:
The resolving power of a telescope can be increased by:
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B) increasing the lens diameters
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Q:
Light of wavelength 480 nm falls on a slit of width 3.5 m. What is the relative intensity (that is, the value of I/Im) of the diffraction pattern at an angle of 18?
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C) 1.1 x 10-2
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E) 1.0
Q:
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