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If the radius of earth reduces by 4% and density remains same then escape velocity will : |
Decrease by 2% Increase by 2% Decrease by 4% Increase by 4% |
Decrease by 4% |
Escape velocity ve ∝ R√ρ and if density remains constant ve ∝ R So if the radius reduces by 4% then escape velocity also reduces by 4% |
