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Which of the following statements is correct?
  1. After a supernova explosion, the remaining part of the star is called a neutron star.
  2. The terminator is the boundary between the day and night sides of the Moon.
  3. The Crater C operni cus has been ni ck -named “Monarch of the Moon” due to its impressive features.
  4. All matter falling into a Bl ack Hole will have about 70% of its mass converted into energy.
  • a)
    I, and III
  • b)
    II, III and IV
  • c)
    I, II, III and IV
  • d)
    I, II and III
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Which of the following statements is correct? After a supernova explos...
D is the correct option. I, II and III are correct.
Statement IV is not correct as Accretion onto a black hole is the most efficient process for emitting energy from matter in the Universe, releasing up to 40% of the rest mass energy of the material falling in. 
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Which of the following statements is correct? After a supernova explosion, the remaining part of the star is called a neutron star. The terminator is the boundary between the day and night sides of the Moon. The Crater C operni cus has been ni ck -named “Monarch of the Moon” due to its impressive features. All matter falling into a Bl ack Hole will have about 70% of its mass converted into energy.a)I, and IIIb)II, III and IVc)I, II, III and IVd)I, II and IIICorrect answer is option 'D'. Can you explain this answer?
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Which of the following statements is correct? After a supernova explosion, the remaining part of the star is called a neutron star. The terminator is the boundary between the day and night sides of the Moon. The Crater C operni cus has been ni ck -named “Monarch of the Moon” due to its impressive features. All matter falling into a Bl ack Hole will have about 70% of its mass converted into energy.a)I, and IIIb)II, III and IVc)I, II, III and IVd)I, II and IIICorrect answer is option 'D'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which of the following statements is correct? After a supernova explosion, the remaining part of the star is called a neutron star. The terminator is the boundary between the day and night sides of the Moon. The Crater C operni cus has been ni ck -named “Monarch of the Moon” due to its impressive features. All matter falling into a Bl ack Hole will have about 70% of its mass converted into energy.a)I, and IIIb)II, III and IVc)I, II, III and IVd)I, II and IIICorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is correct? After a supernova explosion, the remaining part of the star is called a neutron star. The terminator is the boundary between the day and night sides of the Moon. The Crater C operni cus has been ni ck -named “Monarch of the Moon” due to its impressive features. All matter falling into a Bl ack Hole will have about 70% of its mass converted into energy.a)I, and IIIb)II, III and IVc)I, II, III and IVd)I, II and IIICorrect answer is option 'D'. Can you explain this answer?.
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