Who proposed the theory of the expanding universe?
- Georges Lemaitre
- Galileo Galilei
- Edwin Hubble
- Claudius Ptolemy
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American astronomer Edwin Hubble discovered in the 1920s that the Universe is expanding by showing that most galaxies are receding from the Milky Way and the farther away they are, the faster they are receding.
Who is known as the ‘Architecture of Indian Constitution’?
- Dr. B R Ambedkar
- Jawaharlal Nehru
- Sardar Vallabhbhai Patel
- Dr. Rajendra Prasad
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Because of his role in drafting the Constitution of India, Dr. Bhimrao Ambedkar is well known throughout India as the chief architect of the Indian Constitution.
In which of these constellations does the current Pole Star, Polaris, lie?
- Ursa Minor
- Orion
- Ursa Major
- Corona Borealis
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Ursa Minor, or the 'Little Bear', is a relatively conspicuous constellation, visible from the latitudes 90 degrees North to 10 degrees South. It is 'circum-polar', i.e. always visible in the sky, above 20 degrees North latitude.
Why does a star produce its own light and heat?
- Nuclear fission
- Nuclear fusion
- Chemical reaction
- None
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Stars are huge celestial bodies made mostly of hydrogen and helium. Heat and light energy produced by the stars are due to the fusion reaction of hydrogen atoms.
In which year was the constituent assembly established?
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The constituent assembly was formed in 1946 on the basis of the cabinet mission plan.
