Answer :

One relation consists of some fundamental units that give the age of the universe is,


T = × s


Where,


T = Age of the Universe


e = charge of Electron = -1.6×10-19 C


ϵ0 = absolute permittivity


mp = Mass of the Proton = 1.67×10-27 kg


me = Mass of the Electron = 9.1×10-31 kg


c = Speed of light in vacuum = 3×108 m/s


G = Universal Gravitational constant = 6.67×1011 Nm2kg-2


And, = 9×109 Nm2 /C2


T =


≈ 6×109 years


≈ 6 billion years


( 1 billion year = 109 years)


Hence, The age of the universe, T ≈ 6 billion years.


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