Questions
What should be the lengths of a copper rod and a brass rod be at , so that the difference in the lengths of the copper and brass rods remains 10 cm at all temperatures? Given .
detailed solution
Correct option is D
Let the length of brass rod at 0oC is L∴ Length of copper rod at 0oC=L+10Since αcLc=αbLb,we can write, 1.6×10−5×L+10=1.8×10−5×L⇒L=80 cm∴ Length of copper rod =80+10cm=90 cmTalk to our academic expert!
Similar Questions
A rotating solid metal sphere is heated by . If then percentage change in its moment of inertia is
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests