Two spheres P and Q of equal radii have densities r 1 and r 2 , respectively. The spheres…
Physics · JEE Advanced · NTA Exams — Properties of Solids and Liquids
Two spheres P and Q of equal radii have densities r1 and r2, respectively. The spheres are connected by a massless string and placed in liquids L1 and L2 of densities s1 and s2 and viscosities h1 and h2, respectively. They float in equilibrium with the sphere P in L1 and sphere Q in L2 and the string being taut (see figure). If sphere P alone in L2 has terminal velocity 
and Q alone in L1 has terminal velocity \(\vec{V}_{Q},\) then
and Q alone in L1 has terminal velocity \(\vec{V}_{Q},\) then
Answer
(A)
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