General Awareness Quiz on Physical Geography
This quiz comprises questions related to Universe based on competitive exams pattern with explanations.
Q1. Name the branch of astronomy that involves the origin and evolution of the universe.
Cosmology is "the scientific study of the large-scale properties of the universe as a whole."
Q2. Why does a star produce its own light and heat?
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.
Q3. Which theory explains the origin of the universe?
The Big Bang was 13.8 billion years ago when the universe began as a tiny, dense, fireball that exploded.
Q4. Big bang theory was proposed by
Georges Lemaitre was a Belgian cosmologist, Catholic priest, and father of the Big Bang theory.
Q5. Who proposed the theory of the expanding universe?
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.
Q6. Who proposed the steady-state theory?
The steady-state theory was first proposed by Sir James Jeans in the 1920s, but it was reformulated by Fred Hoyle, Thomas Gold, and Hermann Bondi in 1948.
Q7. What is the pulsating theory of the universe?
Sir J.C. Bose proposed a theory of the ascent of sap known as the pulsation theory. The Pulsating Universe Theory says that the universe follows self-sustaining cycles such as expanding and contrasting.
Q8. What Are Constellations?
A constellation is an area on the celestial sphere in which a group of visible stars forms a perceived pattern or outline.
Q9. In which of these constellations does the current Pole Star, Polaris, lie?
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.
Q10. Where in the sky would the Pole Star appear to an observer situated on the North Pole?
The North Star or Pole Star is famous for holding nearly still in our sky while the entire northern sky moves around it. That's because it's located nearly at the north celestial pole
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