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Question
Light of wavelength 550 nm is incident on a diffraction grating that is 1 cm wide and has 1000 slits. What is the dispersion of the m= 2 line?A) 2.0 x 105rad/m
B) 2.0 x 104rad/m
C) 2.0 x 103rad/m
D) 2.0 x 102rad/m
E) 2.0 x 101rad/m
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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B) is least in directions toward the center of the galaxy
C) is proportional to the reciprocal of the distance from us
D) is proportional to the square of the distance from us
E) is nearly the same in all directions
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C) one quark and two antiquarks
D) one quark and one antiquark
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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:
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C) all strongly interacting particles
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Q:
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Q:
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Strangeness is conserved in:
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Q:
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B) an omega minus
C) a sigma
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Q:
A neutral lepton cannot decay into two neutrinos. Of the following conservation laws, which would be violated if it did?
A) Energy
B) Baryon number
C) Linear Momentum
D) Angular momentum
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Q:
An electron participates in:
A) the electromagnetic and weak forces only
B) the strong and weak forces only
C) the electromagnetic and gravitational forces only
D) the electromagnetic, gravitational, and weak forces only
E) the electromagnetic, gravitational, and strong forces only
Q:
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A) photon
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C) neutrino
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Q:
A particle with spin angular momentum is called a:A) leptonB) hadronC) fermionD) bosonE) electron
Q:
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C) gluons
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Compared to fusion in a tokamak, laser fusion makes use of:
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B) greater particle number densities
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E) lower temperatures
Q:
For a controlled nuclear fusion reaction, one needs:
A) high number density nand high temperature T
B) high number density nand low temperatureT
C) low number density nand high temperature T
D) low number density nand low temperature T
E) high number density nand temperature T = 0 K
Q:
The first step of the proton-proton cycle is:
Q:
Nuclear fusion in the Sun is increasing its supply of:
A) hydrogen
B) helium
C) nucleons
D) positrons
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Q:
The purpose of a moderator in a nuclear reactor is to:
A) provide neutrons for the fission process
B) slow down fast neutrons to increase the probability of capture by uranium
C) absorb dangerous gamma radiation
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Q:
In the normal operation of a nuclear reactor:
A) control rods are adjusted so the reactor is subcritical
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The energy supplied by a thermal neutron in a fission event is essentially its:
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B) binding energy
C) kinetic energy
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Q:
A certain nucleus, after absorbing a neutron, emits a and then splits into two alpha particles. The (A, Z) of the original nucleus must have been:A) 6, 2B) 6, 3C) 7, 2D) 7, 3E) 8, 4
Q:
Radioactive polonium, 214Po (Z= 84), decays by alpha emission to:
A) 214Po (Z= 84)
B) 210Pb (Z= 82)
C) 214At (Z= 85)
D) 218Po (Z= 84)
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Q:
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Q:
Bombardment of 28Si (Z= 14) with alpha particles may produce:
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B) hydrogen and 32S (Z= 16)
C) a deuteron and 27Al (Z= 13)
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E) 35Cl (Z= 17)