If the magnetic fields are very strong, such as around sunspots, how are spectral lines affected by the Zeeman effect?
What will be an ideal response?
A strong magnetic field will cause the lines to appear split apart.
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At the center of the Sun, nuclear fusion converts hydrogen into
A) radiation and elements such as carbon and nitrogen. B) helium, gamma rays, and neutrinos. C) hydrogen compounds such as methane. D) radioactive elements such as uranium and plutonium. E) molecular hydrogen.
A goldfish bowl is spherical, 8.0 cm in radius. A goldfish is swimming 3.0 cm from the wall of the bowl. Where does the fish appear to be to an observer outside? The index of refraction of water is 1.33
Neglect the effect of the glass wall of the bowl. A) 3.3 cm inside the bowl B) 3.9 cm inside the bowl C) 2.5 cm inside the bowl D) 3.0 cm inside the bowl E) 1.7 cm inside the bowl
A space probe has a 24.7-m length when measured at rest. What length does an observer at rest measure when the probe is going by at a speed of 0.860c?
a. 25.2 m b. 6.43 m c. 9.19 m d. 12.6 m
Snell's Law: Light goes from material having a refractive index of n1 into a material with refractive index n2. If the refracted light is bent away from the normal, what can you conclude about the indices of refraction?
A. n1 > n2 B. n1 ? n2 C. n1 < n2 D. n1 ? n2 E. n1 = n2