Diana puts an umarked thermometer in melting ice,10C water and 40C and the lenghts of the liquid column are I1,I2 and I3 respectively.Which of the following is correct?
A.I3=4(I2)+I1
B.I3=4(I2)
C.I3=4(I2)-3(I1)
D.I3=4X(I2-I1)
thermometer (phy)
2009-03-14 6:04 am
回答 (1)
2009-03-14 6:37 am
✔ 最佳答案
The answer is D.Since the melting point of ice is 0C,
the length of the liquid column in the thermometer increased was
I2 - I1 when the temperature increased from 0C to 10C.
When the temperature increased to 40C, the length of the liquid column in the thermometer should be 4 times of that when the temperature increased from 0C to 10C.
i.e. I3 = 4(I2 - I1)
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