Consider the following statements:1.The Hubble Constant represents the gravitational force exerted by the Hubble Space Telescope on celestial objects.2.The value of the Hubble Constant has been a subject of scientific investigation and refinement over the years.3.Gravitational lensing is one of the proposed methods used to measure Hubble Constant.Which of the statements given above are correct?

Q. Consider the following statements:
1.The Hubble Constant represents the gravitational force exerted by the Hubble Space Telescope on celestial objects.
2.The value of the Hubble Constant has been a subject of scientific investigation and refinement over the years.
3.Gravitational lensing is one of the proposed methods used to measure Hubble Constant.
Which of the statements given above are correct?

[A] 1 and 2 only

[B] 2 and 3 only

[C] 1 and 3 only

[D] 1, 2 and 3

Answer: B

Notes:

Explanation –

Statement 1 is incorrect. The Hubble constant is a unit that describes how fast the universe is expanding at different distances from a particular point in space. It is a fundamental parameter in cosmology that represents the rate at which the universe is expanding.

Statements 2 and 3 are correct. The value of the Hubble Constant has been a subject of scientific investigation and refinement over the years. Gravitational lensing is one of the proposed methods used to measure Hubble Constant.

Source: ForumIAS

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