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Class 9–10 General Knowledge: Scientists practice questions

Practise scientists for Classes 9 and 10. Try the 10-question quiz below and see each answer explained straight away, then read all 14 questions with answers underneath. Free, no sign-up.

All scientists questions with answers

1. Which Indian mathematician is famous for the number 1729?

   1. A. Homi J. Bhabha
   2. B. Dmitri Mendeleev
   3. C. Srinivasa Ramanujan ✓
   4. D. Vikram Sarabhai

   Answer: Srinivasa Ramanujan. The answer is Srinivasa Ramanujan.

2. Who arranged the elements in the periodic table by atomic mass?

   1. A. M. S. Swaminathan
   2. B. Alfred Nobel
   3. C. Wilhelm Röntgen
   4. D. Dmitri Mendeleev ✓

   Answer: Dmitri Mendeleev. The answer is Dmitri Mendeleev.

3. Who proposed that the Earth goes around the Sun (the heliocentric model)?

   1. A. Tim Berners-Lee
   2. B. Homi J. Bhabha
   3. C. Nicolaus Copernicus ✓
   4. D. Marie Curie

   Answer: Nicolaus Copernicus. The answer is Nicolaus Copernicus.

4. Who discovered the electron?

   1. A. James Chadwick
   2. B. Homi J. Bhabha
   3. C. J. J. Thomson ✓
   4. D. Alfred Nobel

   Answer: J. J. Thomson. The answer is J. J. Thomson.

5. Who discovered radium and polonium?

   1. A. Tim Berners-Lee
   2. B. Vikram Sarabhai
   3. C. Marie Curie ✓
   4. D. M. S. Swaminathan

   Answer: Marie Curie. The answer is Marie Curie.

6. Who is known as the Father of the Indian nuclear programme?

   1. A. Charles Babbage
   2. B. Wilhelm Röntgen
   3. C. Homi J. Bhabha ✓
   4. D. Verghese Kurien

   Answer: Homi J. Bhabha. The answer is Homi J. Bhabha.

7. Who invented the World Wide Web?

   1. A. Srinivasa Ramanujan
   2. B. Tim Berners-Lee ✓
   3. C. Marie Curie
   4. D. Vikram Sarabhai

   Answer: Tim Berners-Lee. The answer is Tim Berners-Lee.

8. Who invented dynamite and founded the Nobel Prizes?

   1. A. J. J. Thomson
   2. B. Vikram Sarabhai
   3. C. Alfred Nobel ✓
   4. D. Nicolaus Copernicus

   Answer: Alfred Nobel. The answer is Alfred Nobel.

9. Who discovered the neutron?

   1. A. James Chadwick ✓
   2. B. Wilhelm Röntgen
   3. C. Verghese Kurien
   4. D. Homi J. Bhabha

   Answer: James Chadwick. The answer is James Chadwick.

10. Who is known as the Father of the Green Revolution in India?

    1. A. Srinivasa Ramanujan
    2. B. J. J. Thomson
    3. C. M. S. Swaminathan ✓
    4. D. Vikram Sarabhai

    Answer: M. S. Swaminathan. The answer is M. S. Swaminathan.

11. Who is known as the father of the computer?

    1. A. James Chadwick
    2. B. Vikram Sarabhai
    3. C. Nicolaus Copernicus
    4. D. Charles Babbage ✓

    Answer: Charles Babbage. The answer is Charles Babbage.

12. Who discovered X-rays?

    1. A. Verghese Kurien
    2. B. Wilhelm Röntgen ✓
    3. C. Srinivasa Ramanujan
    4. D. J. J. Thomson

    Answer: Wilhelm Röntgen. The answer is Wilhelm Röntgen.

13. Who is known as the Father of the White Revolution (Operation Flood) in India?

    1. A. Verghese Kurien ✓
    2. B. Vikram Sarabhai
    3. C. Marie Curie
    4. D. James Chadwick

    Answer: Verghese Kurien. The answer is Verghese Kurien.

14. Who is known as the Father of the Indian space programme?

    1. A. Tim Berners-Lee
    2. B. Nicolaus Copernicus
    3. C. Vikram Sarabhai ✓
    4. D. Charles Babbage

    Answer: Vikram Sarabhai. The answer is Vikram Sarabhai.

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