A spherical solid ball of volume V is made up of a material of density \rho_{1}. It is falling through a liquid of density \rho_{2}(\rho_{2}

Correct Answer is : √Vg(ρ1−ρ2)K

\sqrt{ {K(\rho_{1}-\rho_{2})}/{V g}}

\sqrt{ {Vg(\rho_{1}-\rho_{2})}/{K}}

\sqrt{ {V g(\rho_{1}-\rho_{2})}/{K}}

\sqrt{ {V g(\rho_{1}-\rho_{2})}/{2 K}}

MHT CET 2021 Physics Solved Paper

Question : 20 of 100

Marks: +1, -0

A spherical solid ball of volume V is made up of a material of density ρ1. It is falling through a liquid of density ρ2(ρ2<ρ1). Assume that, the liquid applies a viscous force on the ball that is proportional to the square of the speed vt, i.e., F‌viscous ‌=KVt2], then the terminal speed of ball is
( g= acceleration due to gravity)

√‌
K(ρ1−ρ2)
Vg
√‌
Vg(ρ1−ρ2)
K
√‌
Vg(ρ1−ρ2)
K
√‌
Vg(ρ1−ρ2)
2K

Validate

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