A ball of radius r and density \rho dropped through a viscous liquid of density \sigma and viscosity \eta attains its terminal velocity at time t, given by t=A \rho^a r^b \eta^c \sigma^d, where A is a constant and a, b, c and d are integers. The value of \frac{b+c}{a+d} is \_\_\_\_ . [23 jan 2026 Shift 2]

Properties of Matter Part 3

Section: Physics

Question : 6 of 92

Marks: +1, -0

A ball of radius r and density ρ dropped through a viscous liquid of density σ and viscosity η attains its terminal velocity at time t, given by t=Aρarbηcσd, where A is a constant and a,b,c and d are integers. The value of ‌

b+c

a+d

is ____ .

[23 jan 2026 Shift 2]

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