Request a call back

Join NOW to get access to exclusive study material for best results

ICSE Class 8 Answered

explain the term coefficient of linear expansion . write its unit.
Asked by nathsantanukumar | 17 Apr, 2018, 07:44: PM
answered-by-expert Expert Answer
The increase in the dimensions of an object due to the increase in its temperature is called thermal expansion. The expansion in length is called linera expansion. 
If the substance is in the form of a long rod, then for a change in temperature ΔT, the fractional change in length, Δl/l is directly proportional to ΔT.
 
Hence Δl/l = αl ΔT
where αl is known as the coefficient of linear expansion and is characterstic of the material of the rod
 
unit : K-1
Answered by Thiyagarajan K | 18 Apr, 2018, 05:01: PM
ICSE 8 - Physics
Asked by shanvi.m.gupta | 13 Mar, 2024, 12:26: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 8 - Physics
Asked by sumanayak76 | 29 Dec, 2023, 04:51: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 8 - Physics
Asked by mayapriya.chowdhury9 | 18 Dec, 2023, 09:29: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 8 - Physics
Asked by ahanabhammarkar5b | 09 Dec, 2023, 09:41: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 8 - Physics
Asked by dbb29104 | 09 Oct, 2023, 05:57: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 8 - Physics
Asked by shibolanglapasam | 10 Aug, 2023, 10:16: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 8 - Physics
Asked by papur6326 | 12 Jul, 2023, 06:45: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 8 - Physics
Asked by jerinhts | 18 Jun, 2023, 04:30: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×