National Science Day is observed in India on 28 February to mark which achievement?
- A.The launch of Aryabhata
- B.The announcement of the Raman effect
- C.The first Pokhran nuclear test
- D.The founding of the Indian Space Research Organisation
Correct answer
Explanation
The correct answer is B, the announcement of the Raman effect. On 28 February 1928 the physicist C V Raman announced his discovery that light changes its wavelength when it is scattered by molecules, an effect that carries his name, and for which he received the Nobel Prize in Physics in 1930, the first Nobel Prize in science won by an Indian. The day has been observed since 1987. Option A is wrong because Aryabhata, India's first satellite, was launched in April 1975. Option C is wrong because the first nuclear test at Pokhran took place in May 1974 and the later tests in May 1998, marked by National Technology Day on 11 May. Option D is wrong because the founding of the space agency is not tied to this date. Note that this day marks a discovery, not a birthday.
Read the full article: Days Named After Personalities: Dates and Reasons
Practice Questions
View allNational Youth Day is observed in India on 12 January, the birth anniversary of which personality?
- A.Swami Vivekananda
- B.Raja Ram Mohan Roy
- C.Bal Gangadhar Tilak
- D.Subhas Chandra Bose
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Swami Vivekananda was born on 12 January 1863 at Kolkata, and the Government of India declared his birthday National Youth Day in 1984, first observed in 1985, because his writings and his address at the Parliament of Religions at Chicago in 1893 are held up as a model for young…
Read the full explanation →Teachers' Day is celebrated in India on 5 September, the birth anniversary of:
- A.Dr Rajendra Prasad
- B.Dr Sarvepalli Radhakrishnan
- C.Maulana Abul Kalam Azad
- D.Dr Zakir Husain
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Dr Radhakrishnan, philosopher, professor and the second President of India, was born on 5 September 1888. When students wished to celebrate his birthday in 1962, he suggested that the day be kept for teachers instead, and it has been Teachers' Day ever since.
Read the full explanation →Children's Day is observed in India on 14 November because it is the birth anniversary of:
- A.Mahatma Gandhi
- B.Jawaharlal Nehru
- C.Indira Gandhi
- D.Sardar Vallabhbhai Patel
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Jawaharlal Nehru, the first Prime Minister of India, was born on 14 November 1889, and because of his affection for children, who called him Chacha Nehru, the date was adopted as Children's Day or Bal Diwas.
Read the full explanation →Engineers' Day is observed in India on 15 September in memory of which engineer?
- A.Sir M Visvesvaraya
- B.E Sreedharan
- C.A P J Abdul Kalam
- D.Satish Dhawan
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Sir Mokshagundam Visvesvaraya was born on 15 September 1861 in Mysore state, and he is remembered for the Krishna Raja Sagara dam, the block system of irrigation gates and his years as Diwan of Mysore.
Read the full explanation →National Mathematics Day is observed on 22 December, the birth anniversary of:
- A.Aryabhata
- B.Srinivasa Ramanujan
- C.Brahmagupta
- D.C R Rao
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The mathematician Srinivasa Ramanujan was born on 22 December 1887 at Erode in Tamil Nadu and grew up in Kumbakonam, and although he had almost no formal training in the subject, his results on infinite series, partitions and continued fractions astonished mathematicians in England.
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