Two bodies of same size radiate equally, emissivities in a given ratio: ratio of their temperatures
The same question, asked 4 times: 4 May 2023 S2*, 11 May 2023 S1*, 11 May 2024 S2*, 22 Apr 2025 S2. Every wording below, oldest first.
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Question 1
4 May 2023 S2
3Two bodies 'X' and 'Y' at temperatures '' K and '' K respectively have the same dimensions. If their emissive powers are same, the relation between their temperatures isTap an option to check your answer.
Question 2
11 May 2023 S1
4Two spheres and have same radii but temperatures and respectively. Their emissive power is same and emissivity in the ratio 1:4. Then the ratio isTap an option to check your answer.
Question 3
11 May 2024 S2
34Two bodies A and B at temperature ''K and ''K respectively have the same dimensions. Their emissivities are in the ratio 1 : 3. If they radiate the same amount of heat per unit area per unit time, then the ratio of their temperatures () isTap an option to check your answer.
Question 4
22 Apr 2025 S2
47Two bodies A and B at temperatures ' ' K and ' ' K respectively have the same dimensions. Their emissivities are in the ratio 16:1. At [], they radiate the same amount of heat per unit area per unit time. The value of x isTap an option to check your answer.