Indian Contributions to Black Hole and Neutron Star Research
This quiz covers the contributions of Indian scientists to our understanding of black holes, neutron stars, and related astrophysical phenomena
Questions
Which Indian astronomer and mathematician is credited with proposing the idea of a neutron star in the 1930s?
- Aryabhata
- Bhaskara II
- Srinivasa Ramanujan
- Subrahmanyan Chandrasekhar
What is the approximate mass range for a neutron star?
- 1.4 to 3 solar masses
- 3 to 8 solar masses
- 8 to 15 solar masses
- 15 to 25 solar masses
What is the event horizon of a black hole?
- The boundary beyond which light cannot escape
- The center of the black hole
- The region where matter is compressed to infinite density
- The point of no return for infalling objects
What is the approximate density of a neutron star?
- 10^12 to 10^14 grams per cubic centimeter
- 10^15 to 10^17 grams per cubic centimeter
- 10^18 to 10^20 grams per cubic centimeter
- 10^21 to 10^23 grams per cubic centimeter
Which Indian astronomer and cosmologist proposed the idea of 'black hole thermodynamics' in the 1970s?
- S. Chandrasekhar
- J. B. Joshi
- R. K. Pathria
- T. Padmanabhan
What is the phenomenon known as 'gravitational lensing', which can be observed near black holes?
- The bending of light around massive objects
- The acceleration of particles near black holes
- The formation of neutron stars from massive stars
- The emission of X-rays from black holes
What is the approximate radius of a neutron star?
- 10 to 100 kilometers
- 100 to 1000 kilometers
- 1000 to 10000 kilometers
- 10000 to 100000 kilometers
Which Indian astronomer and cosmologist proposed the idea of 'quantum gravity' in the 1990s, aiming to unify general relativity and quantum mechanics in the context of black holes?
- S. Chandrasekhar
- J. B. Joshi
- R. K. Pathria
- T. Padmanabhan
What is the process known as 'accretion', which occurs around black holes and neutron stars?
- The accumulation of matter onto a compact object
- The ejection of matter from a compact object
- The formation of jets from a compact object
- The emission of gravitational waves from a compact object