The rectangular surface or area 8 cm ×4 cm of a black body at a temperature of 127⁰C emits energy at the rate of E per second. If the length and breadth of the surface are each reduced to half of its initial value, and the temperature is raised to 327⁰C, the rate of emission of energy will become

3/8 E

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81/16 E

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9/16 E

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81/64 E

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Solution

The correct option is D
81/64 E

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Similar questions

Q. The rectangular surface of area

8 c m \times 4 c m

of a black body at a temperature of

127^{\circ} C

emits energy at the rate of

E

per second. If the length and breadth of the surface are each reduced to half of the initial value and the temperature is raised to

327^{\circ} C

, the rate of emission of energy will become

The rectangular surface or area 8 cm ×4 cm of a black body at a temperature of 127⁰C emits energy at the rate of E per second. If the length and breadth of the surface are each reduced to half of its initial value, and the temperature is raised to 327⁰C, the rate of emission of energy will become

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