A thermometer initially at 100°C is dipped at t = 0 into an oil bath, maintain

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A thermometer initially at 100°C is dipped at t = 0 into an oil bath, maintained at 150°C. If the recorded temperature is 130°C after 1 minute, then the time constant of thermometer (in min) is

Options:

A . 1.98

B . 1.35

C . 1.26

D . 1.09

Answer: Option D

-NA-

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