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Subject :NSO    Class : Class 9

Two cylinders of same cross-section and length L but made of two materials of densities ρ1 and ρ2 are cemented together to form a cylinder of length 2L. If the combination floats in water with a length L/2 above the surface of water and ρ1 < ρ2, then

Aρ1 > 1 g cm–3
Bρ1 > 3/2 g cm–3
Cρ1 < 8/9 g cm–3
Dρ1 < 3/4 g cm–3

Ans 1:

Class : Class 9
i dont know the answer to this question \

Ans 2:

Class : Class 9
why doesn't anyone answer?

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