MHT CET 2026 Physics question
A sphere having temperature 600 K is losing heat due to radiation. At this temperature its rate of cooling is 'R'. The rate of cooling of this sphere at 400 K is . The value of x is (Temperature of surrounding is 300 K)
Answer: (D)
Solution
By Stefan's law the rate of cooling is proportional to with K. At 600 K: . At 400 K: .
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