A Black Hole has mass MBH = 15 MSolar. What is its Schwarzschild radius?
A Black Hole has mass MBH = 1800MSolar. What is its Schwarzschild radius?
If the Schwarzschild radius of a Black Hole is 10 km, what is its mass?
Why black holes are black?
Because they do not have any energy
Because nothing escapes
Because radiation does not escape
Because light does not escape
What is at the center of a black hole?
Another black hole
A little galaxy
The singularity point
An X-ray source
What is a supermassive black hole?
Black hole with mass similar to the sun
Black hole with mass similar to Jupiter
Black hole with mass similar to 3Msolar
Black hole with mass (thousand - billion) Msolar
How did the Black Holes were predicted?
With radio telescopes
With optical telescopes
Mathematically using Einstein’s general relativity theory
Hawking radiation is black body radiation due to
Where is the Hawking radiation emitted?
Near the singularity
Near the horizon
Near the Schwarzschild radius
From particles orbiting the black hole
Two 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.)