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Questions and Answers
What is Hawking radiation?
What is Hawking radiation?
- Thermal radiation emitted by stars near a black hole
- Radiation emitted from the core of a black hole
- Thermal black-body radiation released outside a black hole's event horizon (correct)
- Radiation emitted from within a black hole's event horizon
Who is Hawking radiation named after?
Who is Hawking radiation named after?
- Stephen Hawking (correct)
- Albert Einstein
- Isaac Newton
- Galileo Galilei
What effect does Hawking radiation have on black holes?
What effect does Hawking radiation have on black holes?
- Has no effect on the mass and rotational energy
- Increases the mass and rotational energy
- Stabilizes the mass and rotational energy
- Reduces the mass and rotational energy (correct)
What is the predicted detectability of Hawking radiation with current telescopes?
What is the predicted detectability of Hawking radiation with current telescopes?
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How does the radiation temperature relate to the black hole's mass?
How does the radiation temperature relate to the black hole's mass?
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Study Notes
Hawking Radiation
- Hawking radiation is the theoretical phenomenon of black holes emitting a faint thermal spectrum of particles due to quantum effects near the event horizon.
Hawking Radiation Name
- It is named after renowned physicist Stephen Hawking, who first theorized the phenomenon in the 1970s.
Black Hole Effect
- Hawking radiation causes black holes to slowly lose mass and eventually evaporate over extremely long periods of time.
Detectability
- Currently, Hawking radiation is not directly detectable with existing telescopes due to the extremely weak and low-energy radiation emitted.
Radiation Temperature and Black Hole Mass
- The temperature of Hawking radiation is inversely proportional to the black hole's mass, meaning smaller black holes emit hotter radiation.
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