Q.

Which of the following is a dimensional constant?

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a

Refractive index

b

Dielectric constant

c

Relative density

d

Gravitational Constant

answer is D.

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Detailed Solution

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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