In cosmology,the constant that is intimately related to the present "age" of the universe is:
A) the constant in Wien's law of radiation.
B) 1/G, the inverse of the universal gravitational constant.
C) the Planck time, 10-⁴³ s, in which space and time came into existence.
D) 1/H₀, the inverse of the Hubble constant of expansion.
Correct Answer:
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