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Questions  

Which of the following is a dimensional constant?

a
Refractive index
b
Dielectric constant
c
Relative density
d
Gravitational Constant

detailed solution

Correct option is D

Gravitational constant G has a constant value and dimensions. In SI system value of gravitational constant G is 6.6×10−11  Nm2kg−2. Dimensional formula of G is[M−1L3T−2]

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