Grashhoff number is given by

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Grashhoff number is given by

Options:

A . gD³.β.Δtρ²/μ²

B . gD²βΔtρ/μ²

C . gD²βΔtP²μ

D . gD³βΔtP²/μ

Answer: Option A
Answer: (a).gD³.β.Δtρ²/μ²

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