3JEE 1997.......SOLVE THIS AND THEN ILL GIVE U THE VARIANT IF U WANT
HAD SOLVED THIS 1 IN SUM OTHER FORUM......
In a vertical U-tube containing a liquid, the two arms are maintained at different temperatures t1 and t2. The liquid columns in two arms have heights l1 and l2 respectively. The coefficient of volume expansion of liquid is equal to............
a. l1 - l2 /l2t1 - l1t2
b. l1 - l2 /l1t1 - l2t2
c. l1 + l2 /l2t1 + l1t2
d. l1 + l2 /l1t1 + l2t2
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15 Answers
3ACTUALLY A SLIGHTLY MORE COMPLICATED VARIANT OF THIS QUESTION WAS PRESENT IN JEE PAPER .................
3
3yep.........
tapan clue[see only after fully attemting as it discloses answer]:density changes wit teperature
21NICE QUESTION !!
I got :
(l1 - l2)/(t1-t2) = γ l1 / (1 + γt1)
On making γ subject I guess the sum shud b done
21Yuppie!! [1]
My eqtn reduces to A
Dude can u pl. give da Variant.......
