MCQ
The elasticity of invar
- AIncreases with temperature rise
- BDecreases with temperature rise
- ✓Does not depend on temperature
- DNone of the above
✓
Answer
Correct option: C.
Does not depend on temperature
c
Invar is a $Fe - Ni$ alloy stul which does not experience any thermal expansion in the extremely low tempratur environment. Or the above room temprature. environment.
Invar is a $Fe - Ni$ alloy stul which does not experience any thermal expansion in the extremely low tempratur environment. Or the above room temprature. environment.
since, temprature effect on it is very less, it is tough and ductile and hence its elasticity rimains constant when temprature is changed.
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