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Questions and Answers
What effect does a black hole have on light?
What effect does a black hole have on light?
- It emits light
- It bends light
- It reflects light
- It absorbs light (correct)
According to general relativity, what is the boundary of no escape in a black hole called?
According to general relativity, what is the boundary of no escape in a black hole called?
- Event horizon (correct)
- Black body
- Spacetime deformation
- Escape boundary
What is the temperature of the Hawking radiation emitted by stellar black holes?
What is the temperature of the Hawking radiation emitted by stellar black holes?
- Thousands of kelvin
- Billionths of a kelvin (correct)
- Billions of kelvin
- Millions of kelvin
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Study Notes
Black Holes and Light
- A black hole's gravity is so strong that it warps the fabric of spacetime, bending and trapping light around it.
Boundaries of a Black Hole
- The boundary of no escape in a black hole is called the event horizon.
Hawking Radiation
- Stellar black holes emit Hawking radiation, which has a temperature of around 10-8 Kelvin.
- Hawking radiation is a theoretical prediction in quantum mechanics that black holes emit radiation due to quantum effects.
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