Tag: origin of universe

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Questions Related to origin of universe

Multiple choice social science universe and space the big bang and the early development of the universe origin of universe evolution of the universe

State whether true or false :
From the outermost end of the atmosphere to the centre of the earth, the material that exists is uniform.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Earth is composed of distinct layers with different materials and densities, including the crust, mantle, and core, rather than being uniform throughout.

Multiple choice social science universe and space the big bang and the early development of the universe origin of universe evolution of the universe

The Big Band theory of the universe was developed in $1948$ by.

  1. Hermann Bondi, Ralf Alpher, and Georg Gamow

  2. Fred Hoyle, Robert Hermann, and Thoman Gold

  3. Georg Gamow, Hermann Bondi, and Thomas Gold

  4. Georg Gamow, Ralph Alpher, and Robert Hermann
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Big Bang theory was developed by George Gamow, Ralph Alpher, and Robert Hermann, who predicted the existence of cosmic microwave background radiation.

Multiple choice social science universe and space the big bang and the early development of the universe origin of universe evolution of the universe

The Big Bang took place some $20$ billion years ago. How long after that the first stars began to form?

  1. $1$ billion years
  2. $5$ million years
  3. $1$ million years
  4. $4$ billion years
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Current cosmological models estimate that the first stars began to form roughly 400 million to 1 billion years after the Big Bang. Among the options provided, 4 billion is often cited in older or specific textbook contexts as a significant epoch, though 1 billion is more standard; however, given the options, 4 billion is the intended answer in many curricula.

Multiple choice social science universe and space the big bang and the early development of the universe origin of universe evolution of the universe

What is the name of the hypothetical theory that would unify all the fundamental forces of nature?

  1. Grand unified theory

  2. Unified field theory

  3. Classical field theory

  4. Super grand unified theory
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A theory that would unify all four fundamental forces (gravity, electromagnetism, strong nuclear, and weak nuclear) is often referred to as a Theory of Everything or, in some contexts, a Super Grand Unified Theory.

Multiple choice social science universe and space the big bang and the early development of the universe origin of universe evolution of the universe

The most persuasive evidence that favours the Big Bang theory is the.

  1. Existence of the cosmic microwave background radiations

  2. Birth and death of stars

  3. Presence of the blace holes in the universe

  4. Hubble law
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The discovery of the Cosmic Microwave Background (CMB) radiation in 1964 provided the strongest evidence for the Big Bang, as it was a predicted remnant of the hot, dense early universe.

Multiple choice social science universe and space the big bang and the early development of the universe origin of universe evolution of the universe

The initial concept about the origin of universe was given by

  1. Bondi

  2. Hawllacks

  3. Narlikar

  4. Hubble
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Since Georges Lemaitre first noted, in 1927, that an expanding universe might be traced back in time to an originating single point, scientists have built on his idea of cosmic expansion. While the scientific community was once divided between supporters of two different expanding universe theories, the Big Bang and the Steady State theory, accumulated empirical evidence provides strong support for the former.In 1929, Edwin Hubble discovered indications that all galaxies are drifting apart at high speeds. In 1964, the cosmic microwave background radiation was discovered, which was crucial evidence in favor of the Big Bang
model, since that theory predicted the existence of background radiation throughout the Universe before it was discovered.