2. WHAT IS BLACK HOLE?
• Black Hole is a region in space where the light and not even particle can escape from
it.
• Black Hole contain such a strong gravitational effect.
• The general theory of Relativity can sufficiently predicts that how to form a black
hole.
• Black Hole contain a large amount of energy and even matter also.
3. HOW CAN DETECT BLACK HOLE?
• As a name Black Hole is black so we cannot detect easily.
• There are many types of method to detect Black Hole.
• Black Hole emits particular wavelength of light which can be detect in Telescope.
• The boundary of in space where no escape can possible is known as “Event Horizon”.
4. • The Quantum Field Theory in curved space-time indicates that the event horizon emits
Hawking Radiation.
• Black Hole can consider as perfect Black body.
• There are many types of Black Hole like Massive Black Hole, Tiny Black Hole.
The Massive Black Hole contain a large amount of energy as well as the mass of one
spoon of Tiny Black Hole is equal to the mass of huge mountain on the Earth.
5. • The stellar Black Hole creates when very massive star is collapse at the end of its life cycle.
• After created Black Hole, it continuous to growing and absorbing mass from its surroundings.
• Most galaxies are contain a Massive Black Hole in its center.
• If any star of planet is orbiting around Black Hole, the path of the object in spiral shape.
• So that scientist can easily determine the location of Black Hole.
6. • LIGO’s (Laser Interferometer Gravitational wave Observatory) scientists are detect
Gravitational wave which is formed by merging Black Hole.
• LIGO’s scientists succeeded in detection of Gravitational wave on 11 February, 2016.
• As well as the second time was detected Gravitational wave on 15 June, 2016.
7. The first Black Hole was found by Karl Schwarzschild in 1916.
The region of gravitational fields are too strong for light can’t escape from it were first
considered in 18th century by John Michel and Pierre-Simon Laplace.
