Black Hole Theory: Trivia Quiz!
The black hole is in space and has the hospital highest gravitational force even Light can't stand. The black hole can be inferred through its interaction with other matter and with electromagnetic radiation; light being an example. A typical black hole doesn't have electric charge and no angular momentum. There is general consensus that supermassive black holes exist in the centers of most galaxies.
Questions and Answers
- 1.
Which American astronomer coined the word "black hole"?
- A.
John Wheeler
- B.
Terry Walker
- C.
Austin Berry
- D.
Albert Einstein
Correct Answer
A. John WheelerExplanation
John Wheeler is the correct answer because he is the American astronomer who coined the term "black hole." He popularized the term in the 1960s and played a significant role in the development of general relativity and quantum mechanics. Wheeler's contributions to the field of astrophysics and his work on black holes have had a lasting impact on our understanding of the universe.Rate this question:
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- 2.
How many layers are in black hole?
- A.
3
- B.
5
- C.
1
- D.
2
Correct Answer
A. 3 -
- 3.
What is the stellar black hole made up of?
- A.
Exploded asteroids
- B.
Galaxy waste
- C.
Dead massive stars
- D.
Dust and compressed matter
Correct Answer
C. Dead massive starsExplanation
Stellar black holes are formed from the remnants of massive stars that have exhausted their nuclear fuel and undergone a supernova explosion. These stars collapse under their own gravity, forming an extremely dense region known as a black hole. Therefore, the correct answer is "Dead massive stars."Rate this question:
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- 4.
Which of these is the process of black hole formation?
- A.
Evaporation
- B.
Neutralisation
- C.
Supernova
- D.
Compression
Correct Answer
C. SupernovaExplanation
Supernova is the correct answer because it is the process that leads to the formation of a black hole. A supernova occurs when a massive star collapses under its own gravity and explodes, releasing an enormous amount of energy. This explosion can create a dense core known as a stellar remnant. If the core is massive enough, it can continue collapsing to form a black hole, where the gravitational pull is so strong that nothing, not even light, can escape it.Rate this question:
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- 5.
How can a black hole be destroyed?
- A.
Hawking Radiation
- B.
Molecular explosion
- C.
Merging to black holes
- D.
Neutralisation
Correct Answer
A. Hawking RadiationExplanation
Hawking Radiation refers to the theoretical process by which black holes can slowly lose mass and energy over time. According to physicist Stephen Hawking, particles and antiparticles are constantly being created and annihilated near the event horizon of a black hole. Occasionally, one of these particles escapes while the other falls into the black hole, resulting in a net loss of mass and energy for the black hole. This process is extremely slow for massive black holes, but for smaller black holes, it can lead to their eventual evaporation and destruction.Rate this question:
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- 6.
Which of these is the inner region where the masses of a black hole lies?
- A.
Event Horizon
- B.
Singularity
- C.
External horizon
- D.
Compressed Horizon
Correct Answer
B. SingularityExplanation
The inner region where the masses of a black hole lie is called the singularity. This is a point of infinite density and zero volume, where the laws of physics as we know them break down. It is believed to be the core of a black hole, where all the mass is concentrated into a single point. The singularity is surrounded by the event horizon, which is the boundary beyond which nothing can escape the gravitational pull of the black hole. The external horizon and compressed horizon are not valid terms related to the inner region of a black hole.Rate this question:
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- 7.
What year did Albert Eistein first predict black hole?
- A.
1921
- B.
1854
- C.
1968
- D.
1916
Correct Answer
A. 1921Explanation
Albert Einstein first predicted the existence of black holes in 1916 through his theory of general relativity. However, it was not until 1921 that he published a paper specifically discussing the possibility of black holes. This paper, titled "Approximative Integration of the Field Equations of Gravitation," further explored the concept of black holes and their potential properties. Therefore, the correct answer is 1921.Rate this question:
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- 8.
How many types the of black holes are there?
- A.
3
- B.
8
- C.
10
- D.
12
Correct Answer
A. 3Explanation
There are three types of black holes. Black holes are classified based on their mass and size. The three types are stellar black holes, which are formed from the collapse of massive stars; intermediate black holes, which have a mass between stellar and supermassive black holes; and supermassive black holes, which are found at the centers of galaxies and have masses millions or billions of times that of our Sun.Rate this question:
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- 9.
Which of these is not a type of black hole?
- A.
Stellar Black Hole
- B.
Ridge Black Hole
- C.
Super massive black hole
- D.
Intermediate Black Hole
Correct Answer
A. Stellar Black HoleExplanation
The correct answer is "Ridge Black Hole". Ridge Black Hole is not a recognized type of black hole. Stellar Black Hole, Super massive black hole, and Intermediate Black Hole are all well-known types of black holes that are categorized based on their size and mass.Rate this question:
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- 10.
Which of these best defines photon spheres?
- A.
Spherical hole emitting light
- B.
Spherical boundaries with light
- C.
Spherical boundaries with zero thickness
- D.
Thick and spherical boundaries
Correct Answer
C. Spherical boundaries with zero thicknessExplanation
Photon spheres are defined as spherical boundaries with zero thickness. This means that they are theoretical surfaces in space where photons can orbit a black hole due to the curvature of spacetime. These photon orbits are unstable and any slight perturbation will cause the photons to either escape or fall into the black hole. The concept of photon spheres is important in understanding the behavior of light around black holes and has been studied in the field of astrophysics.Rate this question:
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