Answer Posted / seema
According to quantum theory , black holes are not quite
black! Instead, they should glow slightly with "Hawking
radiation", consisting of photons, neutrinos, and to a
lesser extent all sorts of massive particles.
This is not observed, because the only black holes we have
evidence for are those with lots of hot gas falling into
them, whose radiation would completely swamp this tiny
effect. If the mass of a black hole is M solar masses,
Hawking predicted it should glow like a blackbody of
temperature
(6 x 10-8/M) kelvin,
so only for very small black holes would this radiation be
significant.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
Define ablation?
When a radar gun says the pitch is 90 miles per hour at what point in the balls travel to home plate is the radar gun measuring the velocity?
Dear sir i need lic model question paper for the last two years, Kindly forward solved question papers to my mail id gsmaliniraj@yahoo.co.in, malinisankaram@gmail.com
What is geology?
What is a neutron?
What is the name for the physical constant with a value of 6.62 x 10-27 erg seconds?
While at berkeley, melvin calvin used this radioisotope to decipher many of the complex processes of photosynthesis:
How is sound produced?
ek ias bannne ke liye student main kaun se qalities honi chahiye
What is channel?
A truck travels 420 m. Each tire on the truck has a diameter of 42 cm. If one revolution of a tire is equal to 2? Times the radius of the tire (in meters), which of the following equations shows how many revolutions each tire makes as the distance is traveled?
How do we know magma does not originate in the liquid outer core?
Explain the constitution of mantle?
Explain what is nucleus?
What is the formula of velocity?
