Approximate the wavelength of the Hawking radiation from a black hole of mass 1.5×1030 kg 74 km 86 km 56 km 62 km
Q: Calculate the gravitational redshift of radiation of wavelength 550 nm (the middle of the visible…
A: The gravitational redshift is given by the formula, z=11-2GMc2r-1 where, G is the gravitational…
Q: TRUE OR FALSE A Black Hole’s singularity has zero radius yet can accommodate infinite mass.
A: SOlution: Is black hole has zero singularity and yet capable of taking all the mass inside.
Q: hat is the mass of a black hole with a Schwarzschild Radius of 1 AU? Please show w
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Q: The cosmic microwave background consists of: huge clouds of dark matter interspersed with equally…
A: Cosmic microwave background also known relic radiation. Cosmic microwave background is kind of…
Q: How can a black hole emit X-rays?
A: Black holes are regions of high gravity in spacetime. Once a black hole is formed it will start…
Q: What type of explosion occurs when a black hole is born? Group of answer choices Gamma-ray Burst…
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Q: Why is dark matter a problem?
A: Without dark matter stars would escape their galaxies and galaxy clusters would come unbound.…
Q: Is there a way to quantify Dark Matter?
A: Required : Is there a way to quantify Dark Matter ?
Q: The spectral lines of various elements are detected in light from a galaxy in the constellation Ursa…
A: The equation for red shift is, λobs=λ1-vc
Q: Is the event horizon of a black hole the actual physical surface of the object?
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Q: Will the Higgs-Boson particle create a black hole and destroy the Earth
A: No, it will not create a black hole and certainly not big enough to destroy the earth.
Q: Why primordial black holes are thought to be extinct?
A: Black holes are formed due to the gravitational collapse of massive stars when the fusion inside the…
Q: (a) Calculate the photon capture radius and the Schwarzschild radius of M87* (in AU). (b) Why was it…
A: Schwarzschild radius is given by the formulars=2GMc2G is the universal gravitation constant,…
Q: Why is a black hole invisible?
A: A black hole is a region in space where the pulling force of gravity is so strong that light is not…
Q: Why black holes are difficult to observe directly?
A: In supernova the collapse of massive stars core form a black hole. In space , a Black hole is a…
Q: Explain the term Gravitational lensing?
A: Gravitational lensing is the term that is used to describe the bending and distortion in the path of…
Q: Is there a way to quantify Dark Matter?
A: Required : Is there a way to quantify Dark Matter.
Q: Why haven't we detected any Primordial black holes?
A: Primordial black holes or PBH are black holes that formed soon after the birth of the universe. The…
Q: Dark matter experiments are built underground to avoid detecting which type of particle? Group of…
A: In order to reduce the noise level signals caused by Cosmic Rays at Earth's surface, dark matter…
Q: How can we “observe” a black hole if neither matter nor radiation can escape from it?
A: Given: Black hole
Q: an introduction on what is the event horizon of a black holes?
A: The occasion horizon of a black hollow is a essential idea in astrophysics that marks the boundary…
Q: How do black holes form?
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Q: Which of the following were given as evidence supporting the Big Bang Theory? The red shift in…
A: The options are: 1. The red shift in star spectra 2. Microwave energy across the universe at…
Q: Which of the following did NOT happen during the first few minutes after the Big Bang? matter and…
A: Solution: Given: Which of the following did NOT happen during the first few minutes after the Big…
Q: What would happen if you were to jump feet first into a black hole?
A: If we jumped in feet first into a blackhole, we would be torn into pieces via the process of…
Q: How can a black hole be massive but not big?
A: A blackhole is a region in space which have an extremely high gravitational field so that even light…
Q: Most stars exist as a binary system fission reactor quasar…
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Q: the Sun were to become a black hole at what distance will the escape veloc
A: The distance at which the escape velocity of a black hole becomes the speed of light is called the…
Q: A black hole (m = 2.90 x 10^9 Ms) sits in the middle of the M87 galaxy. Calculate its gravitational…
A: mass of black hole = 2.90×109 MsMs = 1.99×1030 kg
Q: Why are gravitational waves so difficult to detect?
A: An invisible ripple in the space, which is traveling at the speed of light is known as gravitational…
Q: A spaceship is located around 2.6×10¹³ km from the black hole Messier 87. It has a mass of 6.6…
A: Time is not absolute, it depends on the speed and gravitational field present. The time measured…
Q: Most of our universe is now thought to be made from Dark energy Dark matter Normal matter O…
A: Universe in which we live is made of different matters and energy. After the Hubble gave the theory…
Q: Calculate the temperature of the black hole with the same mass as moon. (7.3 × 1022 kg)
A: Given Mass of the block hole M = 7.3×1022 kg Find the temperature of the black hole, as following…
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