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All the edges of a block with parallel faces are unequal. Its largest edge is twice its shortest edge. What is the ratio of the maximum to the minimum resistance between parallel faces?

Correct answer

4

Step-by-step solution

Let the length of various edges in increase order be l , x , 2 l respectively R m a x = ρ 2 l x l = 2 ρ x ; R m i n = ρ l 2 l x = ρ 2 x ∴ R m a x R m i n = 4

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