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51.

Who invented the first practical incandescent light bulb, a major advancement in lighting technology?

Thomas Edison

Nikola Tesla

James Watt

Benjamin Franklin

Explanation Comments

Answer: Thomas Edison

Explanation:

Thomas Edison is credited with inventing the first practical incandescent light bulb, which revolutionized the lighting industry.

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52.

Who is the inventor of the World Wide Web (WWW), revolutionizing the way information is shared and accessed online?

Larry Page

Mark Zuckerberg

Bill Gates

Tim Berners-Lee

Explanation Comments

Answer: Tim Berners-Lee

Explanation:

Tim Berners-Lee is credited with inventing the World Wide Web (WWW), transforming the way information is shared and accessed on the internet.

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53.

Who developed the first successful polio vaccine, a crucial step in the fight against polio?

Edward Jenner

Albert Salk

Jonas Sabin

Louis Pasteur

Explanation Comments

Answer: Jonas Salk

Explanation:

Jonas Salk developed the first successful polio vaccine, which played a crucial role in the near-eradication of polio worldwide.

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54.

Who is the Indian scientist known for his significant contributions to the field of mathematics, particularly for his work on infinite series and mathematical analysis?

Satyendra Nath Bose

C.V. Raman

Srinivasa Ramanujan

Meghnad Saha

Explanation Comments

Answer: Srinivasa Ramanujan

Explanation:

Srinivasa Ramanujan, a self-taught mathematician, made remarkable contributions to number theory and mathematical analysis, particularly in the field of infinite series and continued fractions.

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55.

Who is the Indian physicist famous for his pioneering work on the scattering of light, now known as the Raman Effect?

Homi J. Bhabha

Srinivasa Ramanujan

Satyendra Nath Bose

C.V. Raman

Explanation Comments

Answer: C.V. Raman

Explanation:

Sir C.V. Raman is renowned for his discovery of the Raman Effect, a phenomenon involving the scattering of light, for which he was awarded the Nobel Prize in Physics in 1930.

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56.

Who is the Indian astrophysicist known for his development of the Chandrasekhar Limit, a critical concept in the evolution of massive stars?

Homi J. Bhabha

Vikram Sarabhai

A.P.J. Abdul Kalam

Subrahmanyan Chandrasekhar

Explanation Comments

Answer: Subrahmanyan Chandrasekhar

Explanation:

Subrahmanyan Chandrasekhar made significant contributions to astrophysics, particularly by developing the Chandrasekhar Limit, which explains the fate of massive stars.

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57.

Who is the Indian physicist known for his work in theoretical physics and his collaboration with Albert Einstein in developing Bose-Einstein statistics?

Meghnad Saha

Srinivasa Ramanujan

C.V. Raman

Satyendra Nath Bose

Explanation Comments

Answer: Satyendra Nath Bose

Explanation:

Satyendra Nath Bose is famous for his collaboration with Albert Einstein in developing Bose-Einstein statistics, which is fundamental in quantum mechanics.

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58.

Who is the Indian space scientist and visionary leader known as the "father of the Indian space program"?

Homi J. Bhabha

A.P.J. Abdul Kalam

Vikram Sarabhai

Subrahmanyan Chandrasekhar

Explanation Comments

Answer: Vikram Sarabhai

Explanation:

Vikram Sarabhai is often referred to as the "father of the Indian space program" for his pioneering role in establishing the Indian Space Research Organization (ISRO).

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59.

Who is the Indian engineer and scientist recognized for his contributions to the development of the first indigenous aircraft in India, the HF-24 Marut?

C.V. Raman

Homi J. Bhabha

Kurt Tank

A.P.J. Abdul Kalam

Explanation Comments

Answer: Kurt Tank

Explanation:

Dr. Kurt Tank, a German-Indian aeronautical engineer, played a significant role in the development of the HF-24 Marut, India's first indigenous fighter aircraft.

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60.