General Awareness ยท Science General
Indian Scientists and Scholars
2,899 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 theory of stellar evolution?
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Subrahmanyan Chandrasekhar
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Vikram Sarabhai
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Harish-Chandra
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Govind Swarup
A
Correct answer
Explanation
Subrahmanyan Chandrasekhar is known for his work on the theory of stellar evolution, for which he was awarded the Nobel Prize in Physics in 1983.
Which Indian astronomer discovered the Chandra X-ray Observatory?
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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
D
Correct answer
Explanation
Subrahmanyan Chandrasekhar, an Indian-American astrophysicist, played a key role in the discovery of the Chandra X-ray Observatory. He was awarded the Nobel Prize in Physics in 1983 for his contributions to the theory of stellar evolution.
Which Indian astronomer is known for his work on the origin and evolution of galaxies?
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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 is an Indian astrophysicist and cosmologist who has made significant contributions to the study of the origin and evolution of galaxies. He is known for his work on the Hoyle-Narlikar theory of gravity.
Which Indian astronomer is known for his work on the theory of black holes?
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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
D
Correct answer
Explanation
Subrahmanyan Chandrasekhar, an Indian-American astrophysicist, made significant contributions to the theory of black holes. He was awarded the Nobel Prize in Physics in 1983 for his work on the theory of stellar evolution, which includes the study of black holes.
Which Indian astronomer is known for his work on the pulsars?
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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
B
Correct answer
Explanation
Govind Swarup, an Indian radio astronomer, is known for his work on the pulsars. He was the director of the Giant Metrewave Radio Telescope (GMRT) and made significant contributions to the study of pulsars.
Which Indian astronomer is known for his work on the cosmic microwave background?
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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
A
Correct answer
Explanation
Harinder Singh Bedi, an Indian astrophysicist, is known for his work on the cosmic microwave background. He was the director of the Aryabhata Research Institute of Observational Sciences (ARIES) and made significant contributions to the study of the cosmic microwave background.
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.
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.