logo

Ask Questions, Get Answers

 
X
 Search
Want to ask us a question? Click here
Ad
Home  >>  JEEMAIN and AIPMT  >>  Physics  >>  Class11  >>  Thermodynamics
0 votes

A clock which keeps correct time at $\;20^{0}C\;$ . How many seconds will it gains or loss per day when the temperature falls to $\;0^{0}C\;$ ? ( Coefficient of linear expansion of brass = $\;12\times 10^{-6}/^{0}C\;$ )

$(a)\;10.36\;sec\qquad(b)\;9.86\;sec\qquad(c)\;15.6\;sec\qquad(d)\;13.38\;sec$

Can you answer this question?
 
 

1 Answer

0 votes
Answer : $\;10.36\;sec$
Explanation :
Time lost or gained per second = $\;\large\frac{1}{2}\;\alpha \bigtriangleup t\;$ $\;(\bigtriangleup t-\;$ change in temperature $\;)$
Therefore , $\;\large\frac{time\;lost}{gained}\;$ in one day = $\;(\large\frac{1}{2} \alpha \bigtriangleup t)\;86400$
$=10.36\;sec$
answered Mar 24, 2014 by yamini.v
 

Related questions

Ask Question
student study plans
x
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App
...