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Quiz

Chapter 10

Ryan Tram 10 Fragen 5,0 (1 Bewertung)

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  1. 1A Black Hole has mass MBH = 15 MSolar. What is its Schwarzschild radius?
    1. A50.5 km
    2. B44.24 km
    3. C76 km
    4. D100 km
  2. 2A Black Hole has mass MBH = 1800MSolar. What is its Schwarzschild radius?
    1. A150.5 km
    2. B444.24 km
    3. C5309.32 km
    4. D8769.60 km
  3. 3If the Schwarzschild radius of a Black Hole is 10 km, what is its mass?
    1. A15 Msolar
    2. B6.8 Msolar
    3. C35 Msolar
    4. D48 Msolar
  4. 4Why black holes are black?
    1. ABecause they do not have any energy
    2. BBecause nothing escapes
    3. CBecause radiation does not escape
    4. DBecause light does not escape
  5. 5What is at the center of a black hole?
    1. AAnother black hole
    2. BA little galaxy
    3. CThe singularity point
    4. DAn X-ray source
  6. 6What is a supermassive black hole?
    1. ABlack hole with mass similar to the sun
    2. BBlack hole with mass similar to Jupiter
    3. CBlack hole with mass similar to 3Msolar
    4. DBlack hole with mass (thousand - billion) Msolar
  7. 7How did the Black Holes were predicted?
    1. ABy observation
    2. BWith radio telescopes
    3. CWith optical telescopes
    4. DMathematically using Einstein’s general relativity theory
  8. 8Hawking radiation is black body radiation due to
    1. AElectromagnetic effects
    2. BQuantum effects
    3. CGravity effects
    4. DMechanical effects
  9. 9Where is the Hawking radiation emitted?
    1. ANear the singularity
    2. BNear the horizon
    3. CNear the Schwarzschild radius
    4. DFrom particles orbiting the black hole
  10. 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.)
    1. ABild zu Antwort A
    2. BBild zu Antwort B

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Beschreibung
Astronomy
Sprache
English
Aufrufe
399
Schlagwörter
123astronomy
Bewertung
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