Briefly explain how astronomers use the Zeeman effect to measure magnetic fields on the Sun
What will be an ideal response?
Astronomers can measure magnetic fields on the Sun using the Zeeman effect. When an atom is in a magnetic field, the electron energy levels are altered, and the atom is able to absorb photons with a greater variety of wavelengths than the same atom not in a magnetic field.
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A nearsighted man wears contact lenses of -3.00 diopters. With these lenses, his corrected near point is 25.0 cm. What is his uncorrected near point?
What will be an ideal response?
The smallest high tides occur when the Moon phase is
A) first or third quarter. B) new. C) full. D) waxing or waning crescent. E) waxing or waning gibbous.
If electrons were positive and protons were negative, Coulomb's law would be written
A) the same. B) somewhat differently. C) very differently.
Two sounds of the same intensity are added together. The intensity of the resulting sound is how many decibels greater than the intensity of one of the original sounds? The resulting sound
1.will have twice the decibel level as one of the original sounds. 2.will have the same decibel level as one of the original sounds. 3.will be two decibels higher than the original sound. 4.will be three decibels higher than the original sound.