Quiz
Chapter 10
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Questions in this quiz (10)
1A Black Hole has mass MBH = 15 MSolar. What is its Schwarzschild radius?
- A50.5 km
- B44.24 km
- C76 km
- D100 km
2A Black Hole has mass MBH = 1800MSolar. What is its Schwarzschild radius?
- A150.5 km
- B444.24 km
- C5309.32 km
- D8769.60 km
3If the Schwarzschild radius of a Black Hole is 10 km, what is its mass?
- A15 Msolar
- B6.8 Msolar
- C35 Msolar
- D48 Msolar
4Why black holes are black?
- ABecause they do not have any energy
- BBecause nothing escapes
- CBecause radiation does not escape
- DBecause light does not escape
5What is at the center of a black hole?
- AAnother black hole
- BA little galaxy
- CThe singularity point
- DAn X-ray source
6What is a supermassive black hole?
- ABlack hole with mass similar to the sun
- BBlack hole with mass similar to Jupiter
- CBlack hole with mass similar to 3Msolar
- DBlack hole with mass (thousand - billion) Msolar
7How did the Black Holes were predicted?
- ABy observation
- BWith radio telescopes
- CWith optical telescopes
- DMathematically using Einstein’s general relativity theory
8Hawking radiation is black body radiation due to
- AElectromagnetic effects
- BQuantum effects
- CGravity effects
- DMechanical effects
9Where is the Hawking radiation emitted?
- ANear the singularity
- BNear the horizon
- CNear the Schwarzschild radius
- DFrom particles orbiting the black hole
10Two Black Holes have the following masses M1 = 100 Msolar and M2 = 40 Msolar . Show that Schwarzschild radius of the first black hole satisfies one of the relations given below. (Do not panic this is a really easy question!!. Hint: All you need is the relation that gives the Schwarzschild radius of a black hole. Look at the lecture slides.)
- A
- B
- A
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- Astronomy
- Author
- Ryan Tram
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- English
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