The ratio of the rate of radiation of heat by a perfectly black body at a temperature `527^(@)C` and `127^(@)C` is

Question

The ratio of the rate of radiation of heat by a perfectly black body at a temperature `527^(@)C` and `127^(@)C` is

The ratio of the rate of radiation of heat by a perfectly black body at a temperature `527^(@)C` and `127^(@)C` is
A. `16:1`
B. `4:1`
C. `2:1`
D. cannot be found as the temperature of the surroundings is not known

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - A
`(R_(2))/(R_(1))=(T_(2)^(4))/(T_(1)^(4))=((800)/(400))^(4)=(16)/(1)`

5 views Answered 2023-02-05 15:29