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Heat and Thermodynamics question

2021 · Shift 1 · Q57
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Heat and Thermodynamics question

2021 · Shift 1 · Q57

JEE AdvancedPhysicsHeat and ThermodynamicsNumerical+4 / −1
A small object is placed at the center of a large evacuated hollow spherical container. Assume that the container is maintained at 0 K. At time t = 0, the temperature of the object is 200 K. The temperature of the object becomes 100 K at t = t1 and 50 K at t = t2. Assume the object and the container to be ideal black bodies. The heat capacity of the object does not depend on temperature. The ratio (t2/t1) is ‾\underline{\hspace{2cm}}​.
Numerical answer
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