Which of the following is/are cited by the scientists as evidence/evidences for the continued expansion of universe? Detection of microwaves in space Observation of redshirt phenomenon in space Movement of asteroids in space Occurrence of supernova explosions in space code

Which of the following is/are cited by the scientists as evidence/evidences for the continued expansion of universe?

Detection of microwaves in space
Observation of redshirt phenomenon in space
Movement of asteroids in space
Occurrence of supernova explosions in space code

[UPSC Civil Services Exam – 2012 Prelims]

(a) 1 and 2 only

(b) 2 only

(c) 1, 3 and 4

(d) None of the above

Answer: (a)

Explanation:

Evidence for the continued expansion of the universe:

Cosmic microwave background (CMD) – As CMB is the radiation left over from an early stage in the development of the Universe, its discovery is considered a landmark test for the Big Bang model of the Universe. Hence, statement 1 is correct.
Doppler-shift or Redshift and Blueshift – American astronomer Edwin Hubble was the first to describe the redshift phenomenon (galactic redshift) and tie it to an expanding universe (galaxies are drifting apart). Hence, statement 2 is correct.

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Which one of the following Schedules of the Constitution of India contains provisions regarding anti-defection?

The provisions in Fifth Schedule and Sixth Schedule in the Constitution of India are made in order to

Under which Schedule of the Constitution of India can the transfer of tribal land to private parties for mining be declared null and void?

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Categories

Which one of the following Schedules of the Constitution of India contains provisions regarding anti-defection?

The provisions in Fifth Schedule and Sixth Schedule in the Constitution of India are made in order to

Under which Schedule of the Constitution of India can the transfer of tribal land to private parties for mining be declared null and void?

The Ninth Schedule was introduced in the Constitution of India during the prime ministership of

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