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Question
Radiation with the minimum wavelength as well as the K x-ray lines are detected for a certain target. The energy of the incident electrons is then doubled, with the result that:A) the minimum wavelength increases and the wavelengths of the K lines remain the same
B) the minimum wavelength decreases and the wavelengths of the K lines remain the same
C) the minimum wavelength and the wavelengths of the K lines all increase
D) the minimum wavelength and the wavelengths of the K lines all decrease
E) the minimum wavelength increases and the wavelengths of the K lines all decrease
Answer
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Related questions
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Any meson is a combination of:
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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
B) the energy of the least energetic electron after it is ejected
C) the energy of the most energetic electron before it is ejected
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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B) 0.22mc2
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A particle with zero mass and energy Ecarries momentum:
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Q:
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A meter stick moves sideways (that is, in a direction perpendicular to its length) at 0.95c. According to measurements taken in the laboratory, its length is:
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Q:
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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
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4) increase the separation between the slits
5) decrease the separation between the slits
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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?
A) 2.4 x 10-4
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C) 1.1 x 10-2
D) 1.0 x 10-1
E) 1.0
Q:
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