General Awareness · 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 studied the dynamics of nebulae and discovered the presence of turbulence?

  1. Subrahmanyan Chandrasekhar

  2. Meghnad Saha

  3. Harlow Shapley

  4. Subrahmanyan Chandrasekhar
Reveal answer Fill a bubble to check yourself
A,D Correct answer
Explanation

Subrahmanyan Chandrasekhar, an Indian astronomer who lived in the 20th century, studied the dynamics of nebulae and discovered the presence of turbulence.

Multiple choice

Which Indian astronomer developed a theory for the evolution of nebulae?

  1. Subrahmanyan Chandrasekhar

  2. Meghnad Saha

  3. Harlow Shapley

  4. Lars Onsager
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Lars Onsager, an Indian astronomer who lived in the 20th century, developed a theory for the evolution of nebulae.

Multiple choice

Which Indian astronomer discovered the first extragalactic nebula?

  1. Subrahmanyan Chandrasekhar

  2. Meghnad Saha

  3. Harlow Shapley

  4. Edwin Hubble
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Edwin Hubble, an Indian astronomer who lived in the 20th century, discovered the first extragalactic nebula.

Multiple choice

Which Indian astronomer developed a method for measuring the distances to nebulae?

  1. Subrahmanyan Chandrasekhar

  2. Meghnad Saha

  3. Harlow Shapley

  4. Walter Baade
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Walter Baade, an Indian astronomer who lived in the 20th century, developed a method for measuring the distances to nebulae.

Multiple choice

Which Indian astronomer discovered the first radio nebula?

  1. Subrahmanyan Chandrasekhar

  2. Meghnad Saha

  3. Harlow Shapley

  4. Grote Reber
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Grote Reber, an Indian astronomer who lived in the 20th century, discovered the first radio nebula.

Multiple choice

Which Indian astronomer developed a theory for the formation of molecular clouds in nebulae?

  1. Subrahmanyan Chandrasekhar

  2. Meghnad Saha

  3. Harlow Shapley

  4. Charles Townes
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Charles Townes, an Indian astronomer who lived in the 20th century, developed a theory for the formation of molecular clouds in nebulae.

Multiple choice

Which Indian astronomer discovered the first protoplanetary disk in a nebula?

  1. Subrahmanyan Chandrasekhar

  2. Meghnad Saha

  3. Harlow Shapley

  4. Anton Pannekoek
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Anton Pannekoek, an Indian astronomer who lived in the 20th century, discovered the first protoplanetary disk in a nebula.

Multiple choice

Which Indian scientist proposed the 'Cosmic Ancestry Hypothesis', suggesting that life on Earth originated from interstellar dust and gas?

  1. Dr. Jayant Narlikar

  2. Dr. Vikram Sarabhai

  3. Dr. Homi J. Bhabha

  4. Dr. C.V. Raman
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Dr. Jayant Narlikar, a renowned Indian astrophysicist and cosmologist, proposed the 'Cosmic Ancestry Hypothesis', which posits that life on Earth arose from interstellar dust and gas.

Multiple choice

Which Indian scientist proposed the 'Plasma Universe Hypothesis', suggesting that the universe is composed primarily of plasma?

  1. Dr. Hannes Alfvén

  2. Dr. Fred Hoyle

  3. Dr. George Gamow

  4. Dr. Satish Dhawan
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Dr. Hannes Alfvén, a Swedish physicist, proposed the 'Plasma Universe Hypothesis', which suggests that the universe is predominantly composed of plasma, a state of matter consisting of ionized particles.

Multiple choice

Which Indian scientist proposed the 'Steady State Theory', suggesting that the universe is continuously expanding and creating new matter?

  1. Dr. Hermann Bondi

  2. Dr. Thomas Gold

  3. Dr. Fred Hoyle

  4. Dr. George Gamow
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Dr. Fred Hoyle, a British astronomer, proposed the 'Steady State Theory', which suggests that the universe is continuously expanding and creating new matter to maintain a constant density.

Multiple choice

Which Indian scientist proposed the 'Zero-Energy Universe Hypothesis', suggesting that the total energy of the universe is zero?

  1. Dr. Jayant Narlikar

  2. Dr. Subrahmanyan Chandrasekhar

  3. Dr. M.N. Saha

  4. Dr. C.V. Raman
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Dr. Jayant Narlikar proposed the 'Zero-Energy Universe Hypothesis', which suggests that the total energy of the universe is zero, implying a balance between positive and negative energy.

Multiple choice

Which Indian scientist proposed the 'Black Hole Theory', suggesting the existence of regions in spacetime where gravity is so strong that nothing, not even light, can escape?

  1. Dr. Subrahmanyan Chandrasekhar

  2. Dr. Hermann Bondi

  3. Dr. George Gamow

  4. Dr. John Wheeler
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Dr. Subrahmanyan Chandrasekhar's 'Black Hole Theory' proposed the existence of regions in spacetime called black holes, where gravity is so intense that nothing, including light, can escape.

Multiple choice

Which Indian scientist proposed the 'Plasma Universe Hypothesis', suggesting that the universe is composed primarily of plasma?

  1. Dr. Hannes Alfvén

  2. Dr. Fred Hoyle

  3. Dr. George Gamow

  4. Dr. Satish Dhawan
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Dr. Hannes Alfvén, a Swedish physicist, proposed the 'Plasma Universe Hypothesis', which suggests that the universe is predominantly composed of plasma, a state of matter consisting of ionized particles.

Multiple choice

Which Indian mathematician is known for her work on the Riemann hypothesis?

  1. Manjul Bhargava

  2. Renuka Ravindran

  3. Neela Natarajan

  4. Sujatha Ramdorai
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Manjul Bhargava, an Indian-American mathematician, is known for his work on the Riemann hypothesis. He was awarded the Fields Medal in 2014 for his contributions to number theory.

Multiple choice

Which Indian mathematician is known for her work on graph theory?

  1. Manjul Bhargava

  2. Renuka Ravindran

  3. Neela Natarajan

  4. Sujatha Ramdorai
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Renuka Ravindran, an Indian mathematician, is known for her work on graph theory. She has made significant contributions to the study of perfect graphs and has received several awards for her research.