In cosmology,the constant that is intimately related to the present "age" of the universe is A) 1/G,the inverse of the universal gravitational constant. B) 1/H₀,the inverse of the constant in Hubble's universal expansion law. C) The constant in Wien's law of radiation,representing the redness of a spectrum for a certain temperature. D) The inverse of 10^-43 s,the Planck time at which space and time came into existence

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The constant in Hubble's universal expansion law (known as the Hubble constant) relates the rate of expansion of the universe to its present age. This relationship allows scientists to estimate the age of the universe based on observations of its expansion.

In Cosmology,the Constant That Is Intimately Related to the Present