A glass flask is filled up to a mark with 50 cc of mercury at 18ºC. If the flask and contents are heated to 38ºC, how much mercury will be above the mark? (a for glass is 9 × 10?6/ºC and coefficient of real expansion of mercury is 180 × 10?6/ºC) [EAMCET 1997]

If assertion is true but reason is false.

A glass flask is filled up to a mark with 50 cc of mercury at 18ºC. I

1.	A glass flask is filled up to a mark with 50 cc of mercury at 18ºC. If the flask and contents are heated to 38ºC, how much mercury will be above the mark? (a for glass is 9 × 10?6/ºC and coefficient of real expansion of mercury is 180 × 10?6/ºC) [EAMCET 1997]
A.	0.85 cc
B.	0.46 cc
C.	If assertion is true but reason is false.
D.	0.05 cc
Answer» D. 0.05 cc

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A glass flask is filled up to a mark with 50 cc of mercury at 18ºC. If the flask and contents are heated to 38ºC, how much mercury will be above the mark? (a for glass is 9 × 10?6/ºC and coefficient of real expansion of mercury is 180 × 10?6/ºC) [EAMCET 1997]

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