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The quantities of heat required to raise the temperatures of two copper spheres of radii r₁ and r₂ (r₁=1.5 r₂ ) through 1 ~K are in the ratio of

Options

  1. A27 8
  2. B9 4
  3. C3 2
  4. D1

Correct answer

B. 9 4

Step-by-step solution

Required heat, Q r² where r is the radius. aligned Q₁ Q₂ &= r₁² r₂² Q₁ Q₂ &= (1.5)² (1)² Q₁ Q₂ &= 9 4 aligned

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