Scientific Minds — Set 2

Correct Answer: C. Satyendra Nath Bose

• **Satyendra Nath Bose** = S.N. Bose provided the basis for the theory of the Bose-Einstein condensate through his research on quantum mechanics. • **Boson** — This class of particles is named in his honor by Paul Dirac. • 💡 Wrong-option analysis: C.V. Raman: Won the Nobel Prize for his work on the scattering of light (Raman Effect); Meghnad Saha: Known for the Saha Ionization Equation in astrophysics; Homi J. Bhabha: Known as the father of India's nuclear program.

Correct Answer: C. Subrahmanyan Chandrasekhar

• **Subrahmanyan Chandrasekhar** = Subrahmanyan Chandrasekhar discovered the 'Chandrasekhar Limit' concerning the mass of white dwarf stars. • **1983** — He won the Nobel Prize in Physics in this year for his theoretical studies on the evolution of stars. • 💡 Wrong-option analysis: Jayant Narlikar: A cosmologist known for his work in steady-state cosmology; S.N. Bose: A physicist known for Bose-Einstein statistics; Venki Ramakrishnan: Won the Nobel Prize for studies of the structure and function of the ribosome.

Correct Answer: D. M.S. Swaminathan

• **M.S. Swaminathan** = M.S. Swaminathan introduced high-yielding varieties of wheat and rice to Indian farmers. • **1960s** — His efforts helped India achieve self-sufficiency in food grain production during this decade. • 💡 Wrong-option analysis: Verghese Kurien: Known as the 'Father of the White Revolution' in India; Sam Pitroda: An engineer and entrepreneur known for his contributions to India's telecommunications revolution; Norman Borlaug: An American agronomist known as the 'Father of the Green Revolution' globally.

Correct Answer: C. Verghese Kurien

• **Verghese Kurien** = Dr. Verghese Kurien was the brain behind 'Operation Flood', the world's largest dairy development program. • **November 26** — His birthday is observed as National Milk Day in India. • 💡 Wrong-option analysis: M.S. Swaminathan: Known as the 'Father of the Green Revolution' in India; Baba Amte: A social reformer known for his work with leprosy patients; H.M. Dalaya: A dairy engineer who played a key role in the Amul pattern and 'Operation Flood'.

Correct Answer: D. Kalpana Chawla

• **Kalpana Chawla** = Kalpana Chawla was an aeronautical engineer who first flew on the Space Shuttle Columbia in 1997. • **2003** — She unfortunately lost her life during the STS-107 mission in this year when the shuttle disintegrated. • 💡 Wrong-option analysis: Sunita Williams: An American astronaut of Indian descent known for long-duration spaceflights; Sila Bhattacharya: Not a widely recognized name in Indian spaceflight; Sirisha Bandla: An aeronautical engineer who flew on Virgin Galactic's Unity 22 mission.

Correct Answer: A. Prafulla Chandra Ray

• **Prafulla Chandra Ray** = P.C. Ray was a visionary scientist who established India's first pharmaceutical company. • **Bengal Chemicals** — He founded Bengal Chemicals, India's first pharmaceutical company. • 💡 Wrong-option analysis: C.N.R. Rao: a renowned chemist known for solid-state chemistry; Shanti Swarup Bhatnagar: known as 'Father of Research Laboratories'; Venki Ramakrishnan: shared the Nobel Prize in Chemistry for ribosome structure.

Correct Answer: C. Shanti Swarup Bhatnagar

• **Shanti Swarup Bhatnagar** = He was the first director-general of the Council of Scientific and Industrial Research (CSIR). • **National laboratories** — He was instrumental in building a network of national laboratories across the country. • 💡 Wrong-option analysis: Vikram Sarabhai: known as the 'Father of the Indian Space Program'; Homi J. Bhabha: known as the 'Father of the Indian Nuclear Program'; Satish Dhawan: former Chairman of ISRO, known for his contributions to fluid dynamics.

Correct Answer: D. Venki Ramakrishnan

• **Venki Ramakrishnan** = He mapped the structure of the ribosome using X-ray crystallography. • **2009 Nobel Prize** — He shared the **2009 Nobel Prize** in Chemistry for his studies on the structure of the ribosome. • 💡 Wrong-option analysis: Har Gobind Khorana: shared the Nobel Prize for his work on the genetic code; C.V. Raman: awarded the Nobel Prize for the Raman Effect in Physics; Subrahmanyan Chandrasekhar: awarded the Nobel Prize for his theoretical studies on stellar structure.

Correct Answer: D. G. Madhavan Nair

• **G. Madhavan Nair** = He led ISRO during the first moon mission, Chandrayaan-1. • **2008 mission** — Under his leadership, the **2008 mission** discovered water molecules on the lunar surface. • 💡 Wrong-option analysis: K. Sivan: former ISRO Chairman, led Chandrayaan-2 mission; K. Radhakrishnan: led ISRO during Mangalyaan mission; A.S. Kiran Kumar: former ISRO Chairman, known for contributions to earth observation.

Correct Answer: A. Narinder Singh Kapany

• **Narinder Singh Kapany** = He is known as the 'Father of Fiber Optics' for his pioneering work in transmitting light through glass. • **Fiber optics** — He coined the term 'fiber optics' and demonstrated the transmission of images through bundles of glass fibers. • 💡 Wrong-option analysis: Sam Pitroda: known for his contributions to India's telecom revolution; Satish Dhawan: former Chairman of ISRO, known for his contributions to fluid dynamics; U.R. Rao: known as the 'Father of Indian Remote Sensing'.