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

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19. 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_
Transcribed Image Text:19. 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_
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