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

Multiple choice

Which Indian astronomer is known for their research on the infrared emission from nebulae, contributing to the understanding of dust properties and the role of infrared radiation in the evolution of these celestial structures?

  1. T. P. Bhaskaran

  2. Subrahmanyan Chandrasekhar

  3. T. P. Prabhu

  4. S. K. Gupta

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

S. K. Gupta, an Indian astronomer, conducted extensive research on the infrared emission from nebulae. His work provided insights into the properties of dust grains and the role of infrared radiation in the evolution of these celestial objects.

Multiple choice

Who among the following Indian astronomers is credited with developing theoretical models to explain the formation and evolution of planetary nebulae, incorporating the effects of stellar winds and radiation pressure?

  1. Meghnad Saha

  2. Subrahmanyan Chandrasekhar

  3. D. K. Biswas

  4. S. N. Biswas

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

D. K. Biswas, an Indian astronomer, made significant contributions to the theoretical understanding of planetary nebulae formation and evolution. His models incorporated the effects of stellar winds and radiation pressure, providing insights into the dynamics and morphology of these objects.

Multiple choice

Which Indian astronomer is known for their work on the radio emission from nebulae, utilizing radio telescopes to study the distribution and properties of ionized gas and magnetic fields within these celestial structures?

  1. T. P. Bhaskaran

  2. Subrahmanyan Chandrasekhar

  3. Govind Swarup

  4. J. V. Narlikar

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Govind Swarup, an eminent Indian astronomer, made significant contributions to the study of radio emission from nebulae. His observations using radio telescopes provided valuable information about the distribution and properties of ionized gas and magnetic fields within these objects.

Multiple choice

Who among the following Indian astronomers is recognized for their research on the X-ray emission from nebulae, contributing to the understanding of high-energy processes and the role of X-rays in shaping the structure and dynamics of these celestial objects?

  1. Meghnad Saha

  2. Subrahmanyan Chandrasekhar

  3. U. R. Rao

  4. K. Kasturirangan

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

K. Kasturirangan, an Indian astronomer, conducted extensive research on the X-ray emission from nebulae. His work provided insights into the high-energy processes occurring within these objects and the role of X-rays in shaping their structure and dynamics.

Multiple choice

Which Indian astronomer is known for their contributions to the study of the interaction between nebulae and their surrounding interstellar medium, exploring the effects of shock waves, turbulence, and magnetic fields on the evolution of these celestial structures?

  1. T. P. Bhaskaran

  2. Subrahmanyan Chandrasekhar

  3. D. K. Biswas

  4. S. N. Biswas

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

S. N. Biswas, an Indian astronomer, made significant contributions to the study of the interaction between nebulae and their surrounding interstellar medium. His research focused on understanding the effects of shock waves, turbulence, and magnetic fields on the evolution of these celestial structures.

Multiple choice

Who among the following Indian astronomers is recognized for their work on the numerical simulations of nebulae, utilizing supercomputers to model the dynamics, structure, and evolution of these celestial objects?

  1. Meghnad Saha

  2. Subrahmanyan Chandrasekhar

  3. D. K. Biswas

  4. S. K. Gupta

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

D. K. Biswas, an Indian astronomer, conducted extensive numerical simulations of nebulae. His work utilized supercomputers to model the dynamics, structure, and evolution of these celestial objects, providing insights into their physical properties and behavior.

Multiple choice

Which Indian astronomer is known for their contributions to the study of the role of magnetic fields in shaping the morphology and dynamics of nebulae, exploring the effects of magnetic reconnection and field-driven outflows on the evolution of these celestial structures?

  1. T. P. Bhaskaran

  2. Subrahmanyan Chandrasekhar

  3. J. C. Bhattacharyya

  4. A. K. Das

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

J. C. Bhattacharyya, an Indian astronomer, made significant contributions to the study of the role of magnetic fields in shaping the morphology and dynamics of nebulae. His research focused on understanding the effects of magnetic reconnection and field-driven outflows on the evolution of these celestial structures.

Multiple choice

Who among the following Indian astronomers is recognized for their work on the detection and characterization of protoplanetary disks around young stars, utilizing infrared and millimeter observations to study the formation and evolution of planetary systems?

  1. Meghnad Saha

  2. Subrahmanyan Chandrasekhar

  3. T. P. Prabhu

  4. S. K. Gupta

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

T. P. Prabhu, an Indian astronomer, conducted extensive research on the detection and characterization of protoplanetary disks around young stars. His observations using infrared and millimeter telescopes provided valuable insights into the formation and evolution of planetary systems.

Multiple choice

Which Indian astronomer is known for their contributions to the study of the role of cosmic rays in the ionization and heating of nebulae, exploring the effects of particle acceleration and transport on the physical properties and evolution of these celestial structures?

  1. T. P. Bhaskaran

  2. Subrahmanyan Chandrasekhar

  3. U. R. Rao

  4. K. Kasturirangan

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

U. R. Rao, an eminent Indian astronomer, made significant contributions to the study of the role of cosmic rays in the ionization and heating of nebulae. His research focused on understanding the effects of particle acceleration and transport on the physical properties and evolution of these celestial structures.

Multiple choice

Which Indian linguist is known for his work on Dravidian languages and his contributions to comparative linguistics?

  1. Panini

  2. Bhartrhari

  3. Robert Caldwell

  4. Suniti Kumar Chatterji

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Robert Caldwell, a British missionary and linguist, made significant contributions to the study of Dravidian languages and comparative linguistics, particularly in South India.

Multiple choice

Who among the following Indian linguists is known for his work on Tibeto-Burman languages and his contributions to the study of Himalayan languages?

  1. Panini

  2. Bhartrhari

  3. Suniti Kumar Chatterji

  4. George van Driem

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

George van Driem, a Dutch linguist and Tibetologist, made significant contributions to the study of Tibeto-Burman languages and Himalayan languages, particularly in the context of historical linguistics and language documentation.

Multiple choice

Which Indian astronomer was the first to propose a method for measuring the distance to a nebula?

  1. Meghnad Saha

  2. Subrahmanyan Chandrasekhar

  3. Harlow Shapley

  4. Edwin Hubble

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Meghnad Saha was the first Indian astronomer to propose a method for measuring the distance to a nebula. He published his method in 1921.

Multiple choice

Which Indian astronomer used the Saha method to measure the distance to the Andromeda Nebula?

  1. Meghnad Saha

  2. Subrahmanyan Chandrasekhar

  3. Harlow Shapley

  4. Edwin Hubble

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Subrahmanyan Chandrasekhar used the Saha method to measure the distance to the Andromeda Nebula in 1932. His measurement was the first accurate measurement of the distance to a nebula.

Multiple choice

Which Indian astronomer used the Saha method to measure the distance to the Orion Nebula?

  1. Meghnad Saha

  2. Subrahmanyan Chandrasekhar

  3. Harlow Shapley

  4. Edwin Hubble

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Harlow Shapley used the Saha method to measure the distance to the Orion Nebula in 1921.

Multiple choice

Which Indian astronomer used the Saha method to measure the distance to the Crab Nebula?

  1. Meghnad Saha

  2. Subrahmanyan Chandrasekhar

  3. Harlow Shapley

  4. Edwin Hubble

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Edwin Hubble used the Saha method to measure the distance to the Crab Nebula in 1928.