What is the pulsating theory of the universe?
- A cosmological model that combines both the Big Bang and the Big Crunch as part of a cyclical event
- An expansion and contraction of the star as a whole in a regular periodic pulsation
- All the matter of the universe was present in a single place in the form of hot and dense fireball
- Counting of the galaxies is constant and new galaxies which are forming continuously are filling the empty spaces
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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.
The nature of the Indian Constitution-
- Unitary
- Federal
- Quasi Federal System
- Parliamentary
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Indian constitution is federal in form and unitary in spirit. The meaning of the quasi-federal system is both federal and unitary. In Unitary Constitution the supreme governing authority of a state is concentrated in a single place(Central Government). In this constitution, the supreme power is divided between the central and state government, and both governments are independent in their domain.
Indian constitutional amendment procedure is:
- Rigid
- Flexible
- Rigid as well as Flexible
- None
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Indian constitution is more flexible than rigid. For example, most of its provisions can be amended by a two-thirds majority in the parliament. However, in order to amend some of the provisions like the election of the president, powers and functions, the extent of Centre-State relations, etc. apart from two-thirds majority in both houses of the parliament, the bill must be passed by at least half of the total state legislatures.
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.
Where in the sky would the Pole Star appear to an observer situated on the North Pole?
- At a fixed point on the horizon
- Perpetually below the horizon and invisible
- It depends on the time of the year
- At the zenith (exactly overhead)
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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
