Why does a fireplace poker appear black when not in the fire and red, yellow, or white when left in the fire? a. When not in the fire, the poker is at room temperature and emits in the IR. When its temperature increases, according to the Stefan-Boltzmann law, the emitted wavelength becomes longer so the radiation may be visible. b. When not in the fire, the poker is at room temperature and emits in the UV. When its temperature increases, according to the Stefan-Boltzmann law, the emitted wavelength becomes shorter so the radiation may be visible. c. When not in the fire, the poker is at room temperature and emits in the UV. When its temperature increases, according to Wien’s law, the emitted wavelength becomes longer so the radiation may be visible. d. When not in the fire, the poker is at room temperature and emits in the IR. When its temperature increases, according to Wien’s law, the emitted wavelength may be short enough to be in the visible range.
Atomic Structure
The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.
Shape of the D Orbital
Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.
Why does a fireplace poker appear black when not in the fire and red, yellow, or white when left in the fire?
a. When not in the fire, the poker is at room temperature and emits in the IR. When its temperature increases, according to the Stefan-Boltzmann law, the emitted wavelength becomes longer so the radiation may be visible.
b. When not in the fire, the poker is at room temperature and emits in the UV. When its temperature increases, according to the Stefan-Boltzmann law, the emitted wavelength becomes shorter so the radiation may be visible.
c. When not in the fire, the poker is at room temperature and emits in the UV. When its temperature increases, according to Wien’s law, the emitted wavelength becomes longer so the radiation may be visible.
d. When not in the fire, the poker is at room temperature and emits in the IR. When its temperature increases, according to Wien’s law, the emitted wavelength may be short enough to be in the visible range.
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