General Awareness ยท Science General
Indian Scientists and Scholars
3,166 Questions
Indian scientists and scholars questions cover significant contributions in astronomy, physics, and other scientific fields. These historical and contemporary achievements are vital for the general awareness sections of SSC and banking exams. Practice these questions to remember key scientific milestones and their inventors.
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Indian Scientists and Scholars Questions
Which Indian astronomer is known for his work on the gravitational waves?
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Harinder Singh Bedi
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Govind Swarup
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Jayant Narlikar
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Subrahmanyan Chandrasekhar
C
Correct answer
Explanation
Jayant Narlikar, an Indian astrophysicist and cosmologist, is known for his work on the gravitational waves. He was the director of the Inter-University Centre for Astronomy and Astrophysics (IUCAA) and made significant contributions to the study of gravitational waves.
Which Indian astronomer is known for his work on the extragalactic astronomy?
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Harinder Singh Bedi
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Govind Swarup
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Jayant Narlikar
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Subrahmanyan Chandrasekhar
C
Correct answer
Explanation
Jayant Narlikar, an Indian astrophysicist and cosmologist, is known for his work on the extragalactic astronomy. He was the director of the Inter-University Centre for Astronomy and Astrophysics (IUCAA) and made significant contributions to the study of extragalactic astronomy.
Which Indian astronomer is known for his significant contributions to asteroid research?
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Dr. R. Rajamohan
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Dr. U. R. Rao
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Dr. A. P. J. Abdul Kalam
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Dr. Vikram Sarabhai
A
Correct answer
Explanation
Dr. R. Rajamohan is a renowned Indian astronomer who has made significant contributions to asteroid research.
Which astronomer is known for his work on the theory of stellar nucleosynthesis and the discovery of the triple-alpha process?
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Edwin Hubble
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Fred Hoyle
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William Fowler
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Subrahmanyan Chandrasekhar
B
Correct answer
Explanation
Fred Hoyle made significant contributions to the theory of stellar nucleosynthesis, including the discovery of the triple-alpha process, which explains how helium is formed in stars.
Which Indian type designer is known for his work on the 'Akshar' font family, inspired by traditional Indian scripts?
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Satish Gupta
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Sudarshan Dutta
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R.K. Joshi
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G.N. Das
A
Correct answer
Explanation
Satish Gupta is a renowned type designer who has created several digital font families inspired by traditional Indian scripts. His 'Akshar' font family is particularly notable for its elegant and authentic rendering of Devanagari and other Indian scripts.
Who among the following Indian astronomers is credited with developing the first comprehensive classification scheme for nebulae?
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Subrahmanyan Chandrasekhar
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Meghnad Saha
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Harlow Shapley
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Vikram Sarabhai
B
Correct answer
Explanation
Meghnad Saha, a renowned Indian astrophysicist, is widely recognized for his pioneering work in nebulae classification. In 1921, he proposed a classification scheme based on the physical characteristics and spectral features of nebulae, which laid the foundation for further research in this field.
Which Indian astronomer proposed the concept of 'symbiotic stars'?
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Subrahmanyan Chandrasekhar
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Harlow Shapley
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Vikram Sarabhai
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M.K. Vainu Bappu
D
Correct answer
Explanation
M.K. Vainu Bappu, a distinguished Indian astronomer, introduced the concept of symbiotic stars in 1957. Symbiotic stars are binary systems consisting of a red giant and a hot, compact companion star, exhibiting unique spectral and variability characteristics.
Which Indian astronomer made significant contributions to the study of planetary nebulae?
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Subrahmanyan Chandrasekhar
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Harlow Shapley
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Vikram Sarabhai
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T.P. Bhaskaran
D
Correct answer
Explanation
T.P. Bhaskaran, an eminent Indian astronomer, conducted extensive research on planetary nebulae. He developed a classification scheme for planetary nebulae based on their morphological features and identified several new types of planetary nebulae.
Which Indian astronomer played a crucial role in the discovery of the first extragalactic nebula?
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Subrahmanyan Chandrasekhar
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Harlow Shapley
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Vikram Sarabhai
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J.N. Tandon
D
Correct answer
Explanation
J.N. Tandon, a renowned Indian astronomer, made significant contributions to the study of extragalactic nebulae. In 1935, he discovered the first extragalactic nebula, NGC 224, using the 100-inch Hooker telescope at Mount Wilson Observatory.
Which Indian astronomer made significant contributions to the study of dark nebulae?
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Subrahmanyan Chandrasekhar
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Harlow Shapley
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Vikram Sarabhai
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U.R. Rao
D
Correct answer
Explanation
U.R. Rao, a distinguished Indian astronomer, conducted extensive research on dark nebulae. He studied the distribution and properties of dark nebulae and their role in the formation of stars and planetary systems.
Which Indian astronomer played a key role in the establishment of the Indian Institute of Astrophysics?
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Subrahmanyan Chandrasekhar
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Harlow Shapley
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Vikram Sarabhai
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M.K. Vainu Bappu
C
Correct answer
Explanation
Vikram Sarabhai, a visionary Indian scientist and administrator, played a pivotal role in the establishment of the Indian Institute of Astrophysics (IIA) in 1971. He recognized the importance of astronomical research and provided leadership in setting up this premier institution dedicated to astrophysics and space science.
Which Indian astronomer made significant contributions to the study of the Orion Nebula?
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Subrahmanyan Chandrasekhar
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Harlow Shapley
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Vikram Sarabhai
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T.P. Bhaskaran
D
Correct answer
Explanation
T.P. Bhaskaran conducted extensive research on the Orion Nebula, one of the most prominent and well-studied nebulae in the night sky. He investigated its structure, dynamics, and chemical composition, providing valuable insights into the formation and evolution of nebulae.
Which Indian astronomer played a crucial role in the development of the Indian Space Research Organization (ISRO)?
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Subrahmanyan Chandrasekhar
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Harlow Shapley
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Vikram Sarabhai
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M.K. Vainu Bappu
C
Correct answer
Explanation
Vikram Sarabhai, often referred to as the 'Father of the Indian Space Program,' played a pivotal role in the establishment and development of the Indian Space Research Organization (ISRO). He envisioned India's potential in space exploration and laid the foundation for the country's successful space missions.
Which Indian astronomer is known for his pioneering work on the evolution of planetary nebulae?
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Subrahmanyan Chandrasekhar
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Harish-Chandra
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Meghnad Saha
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Vikram Sarabhai
A
Correct answer
Explanation
Subrahmanyan Chandrasekhar made significant contributions to the study of planetary nebulae, including the development of the theory of radiative transfer in nebulae and the discovery of the Chandrasekhar limit, which is the maximum mass of a white dwarf star.
Which Indian astronomer is known for his work on the chemical composition of nebulae?
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T.P. Prabhu
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U.R. Rao
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G. Swarup
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M.K. Vainu Bappu
A
Correct answer
Explanation
T.P. Prabhu is an Indian astronomer who has made significant contributions to the study of the chemical composition of nebulae. He has used spectroscopic observations to determine the abundances of various elements in nebulae, providing insights into their formation and evolution.