Home
Class 11
PHYSICS
A steel rod of length 5m is fixed rigidl...

A steel rod of length 5m is fixed rigidly between two supports. a of steel = `12xx10^(-6)//""^(@)C,Y=2xx10^(11)Nm^(-2)`. With the increase in its temperature by `40^(@)C`, the stress developed in the rod is

A

`9.6 xx 10^(5) "Nm"^(-2)`

B

`9.6 xx 10^(6) "Nm"^(-2)`

C

`9.6 xx 10^(7)"Nm"^(-2)`

D

`9.6 xx 10^(8) "Nm"^(-2)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

The length of each rail is 10m. The linear expansion of steel is 12xx10^(-6)//""^(@)C and range of variation of temperature at the given place is 15^(@)C . The gap to be left between the rails is

Passage - I: A rod of length 2m is at a temperature of 20^(@) C . Find the free expansion of the rod, if the temperature is increased to 50°C, then find stress produced when the rod is Stress produced when the rod is free

A brass rod of length 50 cm and diameter 3.0 mm is joined to a steel rod of the same length and diameter. What is the change in length of the combined rod at 250 ^(@) C . if the original lengths are at 40.0 ^(@) C ? Is there a "thermal stress developed at the junction ? The ends of the rod are free to expand (Co-efficient of linear expansion of brass = 2.0 xx 10^(-5) K^(-1) , " steel " = 1.2 xx 10^(-5) K^(-1)) .

Passage - I: A rod of length 2m is at a temperature of 20^(@) C . Find the free expansion of the rod, if the temperature is increased to 50°C, then find stress produced when the rod is Permitted to expand by 0.4 mm. Y= 2 xx 10^( 11) N//m^(2) , alpha = 15 xx 10^(-6) //^(@) C

Passage - I: A rod of length 2m is at a temperature of 20^(@) C . Find the free expansion of the rod, if the temperature is increased to 50°C, then find stress produced when the rod is Fully prevented to expand