National Science Day is observed in India on 28 February to commemorate
- A.the founding of the Indian Science Congress
- B.the discovery of the Raman effect
- C.the launch of Aryabhata
- D.the first nuclear test at Pokhran
Correct answer
Explanation
The correct answer is B, the discovery of the Raman effect. Sir C. V. Raman announced his discovery of the scattering of light, now called the Raman effect, on 28 February 1928, and it won him the Nobel Prize in Physics in 1930, the first for an Indian in the sciences. The day has been observed since 1987.
Option A is wrong because the Indian Science Congress held its first session in January 1914 and is not the reason for this day. Option C is wrong because Aryabhata, India's first satellite, was launched on 19 April 1975, a date kept by the space community and not as National Science Day. Option D is wrong because the Pokhran tests of 11 May 1998 are marked as National Technology Day, which is the commonest confusion in this question. Keep the pair apart: 28 February is science, 11 May is technology.
Read the full article: National Days of India: Dates and Their Reasons
Practice Questions
View allRepublic Day is celebrated in India on 26 January because on this day in 1950
- A.India became independent
- B.the Constitution of India came into force
- C.the Constituent Assembly adopted the Constitution
- D.the first general election was held
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The Constitution took effect on 26 January 1950 and India became a sovereign republic. The date was chosen on purpose, because the Indian National Congress had declared Purna Swaraj, or complete independence, on 26 January 1930, and the founders wished to honour that pledge.
Read the full explanation →National Youth Day is observed on 12 January to mark the birth anniversary of
- A.Bhagat Singh
- B.Swami Vivekananda
- C.Subhas Chandra Bose
- D.Jawaharlal Nehru
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Read the full explanation →Teachers' Day is celebrated in India on 5 September in honour of
- A.Dr S. Radhakrishnan
- B.Maulana Abul Kalam Azad
- C.Dr Zakir Husain
- D.Dr Rajendra Prasad
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He was born on 5 September 1888, was a philosopher and teacher before entering public life, and served as the first Vice-President and the second President of India.
Read the full explanation →Engineers' Day is celebrated in India on 15 September every year to mark the birth anniversary of
- A.Homi Jehangir Bhabha
- B.Sir M. Visvesvaraya
- C.Vikram Sarabhai
- D.A. P. J. Abdul Kalam
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- A.Milkha Singh
- B.Major Dhyan Chand
- C.Sachin Tendulkar
- D.K. D. Jadhav
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The hockey player was born on 29 August 1905 and won Olympic gold with India in 1928, 1932 and 1936.
Read the full explanation →