Modern Scientists — Set 6
Inventions · आधुनिक वैज्ञानिक · Questions 51–60 of 60
What is the 'Gems' fact about the 'Raman Effect' discovery date?
Correct Answer: A. Feb 28
C.V. Raman discovered the Raman Effect on February 28, 1928. This date is now observed as National Science Day every year in India to honor his achievement. He won the Nobel Prize for this work only two years later.
Which 'Gems' scientist is associated with the 'White Revolution' in India?
Correct Answer: B. Verghese Kurien
Dr. Verghese Kurien is the architect of the White Revolution, which made India the top milk producer in the world. He started the Amul cooperative movement in Anand, Gujarat. This model empowered millions of small-scale farmers across rural India.
The 'Gems' term for the first satellite launched by India in 1975 is?
Correct Answer: B. Aryabhata
Aryabhata was India's first satellite, named after the famous 5th-century Indian astronomer. It was built by ISRO and launched using a Soviet rocket. The success of this mission established India's capabilities in satellite fabrication and control.
Who is the 'Gems' scientist behind the 'Chandrasekhar Limit'?
Correct Answer: D. S. Chandrasekhar
Subrahmanyan Chandrasekhar formulated the limit while still a student on a ship to England. The limit states that stars heavier than 1.44 solar masses will collapse into neutron stars or black holes. He was awarded the Nobel Prize in Physics in 1983 for this discovery.
Which 'Gems' scientist is known for the first synthetic gene synthesis?
Correct Answer: D. Har Gobind Khorana
Har Gobind Khorana synthesized the first artificial gene in 1970. He had previously won the Nobel Prize in 1968 for his role in cracking the genetic code. His work is a cornerstone of modern molecular biology and genetic engineering.
The 'Gems' title 'Father of Indian Space Program' belongs to?
Correct Answer: C. Vikram Sarabhai
Vikram Sarabhai established the Indian National Committee for Space Research (INCOSPAR) in 1962. This organization later evolved into ISRO in 1969. He believed that space technology could solve real-world problems for the Indian population.
Which 'Gems' scientist discovered that plants have feelings and can sense pain?
Correct Answer: C. Jagadish Chandra Bose
J.C. Bose used his invention, the crescograph, to observe minute movements in plant tissues. He demonstrated that plants respond to electrical and chemical stimuli much like animals. He was also a pioneer in the development of microwave technology.
The 'Gems' award 'Bhatnagar Prize' is given annually in which field?
Correct Answer: A. Science and Technology
The Shanti Swarup Bhatnagar Prize is the most prestigious science award for researchers under 45 in India. It is presented by the CSIR to recognize outstanding work in various scientific disciplines. It was instituted in 1958 in memory of the first director of CSIR.
Who is the 'Gems' mathematician known as the 'Man Who Knew Infinity'?
Correct Answer: B. Srinivasa Ramanujan
Srinivasa Ramanujan possessed an almost supernatural intuition for numbers and complex formulas. He independently discovered nearly 3,900 results in mathematics before dying at the age of 32. His life and work are chronicled in the famous biography 'The Man Who Knew Infinity'.
Which 'Gems' scientist is the primary architect of India's nuclear power programme?
Correct Answer: C. Homi J. Bhabha
Homi J. Bhabha established the Atomic Energy Commission shortly after India's independence. He is known for the three-stage nuclear power plan designed to make India energy independent. He was also a world-renowned physicist who worked on cosmic rays.