A single slit illuminated with a 500 nm light gives a diffraction pattern on a far screen. The 5th minimum occurs at 7.00° away from the central maximum. At what angle does the 18th minimum occur?
A) 26.0°
B) 1.94°
C) 5.05°
D) 0.44°
A
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What is "uniform motion?"
a. smooth motion b. motion with zero acceleration c. motion with constant velocity d. motion at a constant speed e. motion along a straight path
The mass of the Sun is 2.0 × 10^30 kg, and the mass of a hydrogen atom is 1.67 × 10^-27 kg. If we assume that the Sun is mostly composed of hydrogen, how many atoms are there in the Sun?
a. 1.2 × 10^56 atoms c. 1.2 × 10^57 atoms b. 3.4 × 10^56 atoms d. 2.4 × 10^57 atoms
In the spectrum of a blackbody, the wavelength of peak intensity
A) decreases as temperature increases. B) is 0.029 m. C) is 0.0029 m. D) increases as temperature increases. E) is independent of temperature.
A spaceship traveling at constant velocity passes by Earth and later passes by Mars. In which frame of reference is the amount of time separating these two events the proper time?
A) the Earth frame of reference B) the Mars frame of reference C) the spaceship frame of reference D) any inertial frame of reference E) any frame of reference, inertial or not