AMU Engineering 2020 solved paper Solved Paper

Section: Physics

Question : 39 of 150

Marks: +1, -0

If a body coated black at 600K surrounded by atmosphere at 300K has cooling rate r0, the same body at 900K, surrounded by the same atmosphere will have cooling rate equal to

‌
16
3
r0
‌
8
16
r0
16r0
4r0

Validate

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