Why is a black hole invisible?

Q: What is Laplace equation

A: Laplace equation:  Laplace equation is a special type of second order partial differential equation.…

Q: What is a black body? On what factors does the radiation emitted from it depend?

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Q: What is Schwarzschild radius?

A: The radius of the event horizon in which no element can escape the black hole, even light is known…

Q: A spacecraft in the shape of a long cylinder has a length of 100 m, and its mass with occupants is 1…

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Q: What type of explosion occurs when a black hole is born? Group of answer choices Gamma-ray Burst…

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Q: what are black holes

A: Required : What are black holes.

Q: A Black Hole gets its name because it is the remains of a massive black star.  True  False

A: When the massive stars collapse, then the black hole is produced. It absorbs all the mass and light…

Q: Is the event horizon of a black hole the actual physical surface of the object?

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Q: To what radius would the Sun have to be contracted for its escape speed to equal the speed of light?…

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Q: How does a gravitational red-shift differ from a Doppler red shift?

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Q: How can we “observe” a black hole if neither matter nor radiation can escape from it?

A: Given:  Black hole

Q: How do black holes form?

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Q: What characteristics must a binary star have to be a good candidate for a black hole? Why is each of…

A: The characteristic must a binary star posses for it to be a good candidate for black hole is,  From…

Q: Black hole candidates are conspicuous by their continuous or flickering emission of   a. infrared…

A: Introduction: A black hole is a region where gravity is so strongest that nothing can even particles…

Q: What would you have to do to make earth a black hole ?

A: Black holes are objects in space from which even light can not escape. What makes the black hole so…

Q: What would be the diameter (of the event horizon) of a black hole with the same mass as Jupiter?

A: Blackhole is a hypothetical concept that contains everything in the universe within a very small…

Q: Explain why the ring in the center is dark in the Newton's ring experiment.

A: The dark ring occurs when the destructive interference occurs at that point. The condition  for the…

Q: The biggest black hole ever discovered has a mass of 40 billion solar masses. Calculate the…

A: Given,

Q: What does a black hole sound like?

A: Black hole is a heavenly body.

Q: Event Horizon is a region around a black hole where: group of answer choices: even light cannot…

A: Event horizon is the boundary marking the limit of a black hole. Add event horizon the velocity of…

Q: 2. Determine the Schwarzschild radius and the average density of a black hole formed by the…

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Q: Name the chemicals leading to the formation of black hole.

A: Black holes are formed when highly massive stars are collapsed at the end of their life cycle. After…

Q: The Schwarzschild radius is a distance from a black hole where the escape velocity equals the speed…

A: The escape speed is given as: V=2GMR where R is the radius and M is mass The Sun (mass is 2 x 1030…

Q: What is the Schwarzschild radius (in km) of a 20 solar mass black hole?

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Q: After consuming all of its nuclear fuel, a massive star can collapse to form a black hole, which is…

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Q: Why can you not observe beyond the horizon distance? Because of opaque gas Because our telescopes…

A: Hey there, since you have asked multiple questions we have answer the first one for you. You…

Q: Can you go fast enough to get enough mass to become a black hole?

A: According to the question travelling at a high speed does not affect your mass, even in Einstein's…

Q: A particle maintains a circular orbit around a black hole of mass 10 Solar masses at a distance…

A: Mass of black hole (M) = 10×2×1030 kg = 2×1031 kg distance (R) = 2×Schwarzchild radii = 2×G×Mc2=…

Q: Why does the Doppler effect only find the radial velocity?

A: Required : Why does the Doppler effect only find the radial velocity?