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Question
Which of the following statements is correct?A) All leptons are bosons.
B) All hadrons are fermions.
C) The two types of mesons are leptons and baryons.
D) The two types of hadrons are mesons and baryons.
E) The two types of leptons are mesons and fermions.
Answer
This answer is hidden. It contains 1 characters.
Related questions
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The intensity of the microwave background radiation, a remnant of the big bang:
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C) is proportional to the reciprocal of the distance from us
D) is proportional to the square of the distance from us
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Q:
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A) three quarks
B) two quarks and an antiquark
C) one quark and two antiquarks
D) one quark and one antiquark
E) two quarks
Q:
Any meson is a combination of:
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B) two quarks and an antiquark
C) one quark and two antiquarks
D) one quark and one antiquark
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Q:
Quarks are the constituents of:
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C) all strongly interacting particles
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Q:
The color theory explains why quarks:
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Q:
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B) electromagnetic and strong
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Q:
Strangeness is conserved in:
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E) some strong particle decays
Q:
When a kaon decays via the strong interaction the products must include a:
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B) lepton
C) strange particle
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E) neutrino
Q:
Two baryons interact to produce pions only, the original baryons disappearing. One of the baryons must have been:
A) a proton
B) an omega minus
C) a sigma
D) an antiparticle
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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
E) the electron potential energy at the surface of the sample
Q:
In a photoelectric effect experiment at a frequency above cut off, the number of electrons ejected is proportional to:
A) their kinetic energy
B) their potential energy
C) the work function
D) the frequency of the incident light
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Q:
The units of the Planck constant hare those of:
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C) momentum
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Q:
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Q:
A particle with rest mass m moves with speed 0.6c. Its kinetic energy is:
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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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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:
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:
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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
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B) 5 only
C) 1 and 3 only
D) 1 and 5 only
E) 2 and 4 only
Q:
The resolving power of a telescope can be increased by:
A) increasing the objective focal length and decreasing the eyepiece focal length
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
B) 1.7 x 10-3
C) 1.1 x 10-2
D) 1.0 x 10-1
E) 1.0
Q:
A plane wave with a wavelength of 500 nm is incident normally on a single slit with a width of 5.0 x10-6m. Consider waves that reach a point on a far-away screen such that rays from the slit make an angle of 1.0ï‚°with the normal. The difference in phase for waves from the top and bottom of the slit is:A) 0 radB) 0.55 radC) 1.1 radD) 1.6 radE) 2.2 rad