A steel tape measures the length of a co...

A steel tape measures the length of a copper rod as 90.0 cm when both are at `10^@C`, the calibration temperature for the tape. What would the tape read for the length of the rod when both are at `30^@C`. Given `alpha steel =1.2 xx 10^-5 per^@C and alpha_cu=1.7xx10^-15 per^@C`.

89.00 cm

90.21 cm

89.80 cm

90.01 cm

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

CIRCULAR MOTION
PATHFINDER|Exercise QUESTION BANK|127 Videos

Similar Questions

Explore conceptually related problems

At what temperature the resistance of a copper wire will become three times its value at 0^@C ? Temperature coefficient of resistance for copper 4xx10^(-3)//C

The difference in lengths of an iron and a copper rod, both at 50^(@)C " and " 450^(@)C , is 2 cm. What are the lengths of the two rods at 0^(@)C ? [Given, alpha_(Fe)=12 times 10^(-6@)C^(-1) " and " alpha_(Cu)=17 times 10^(-6@)C^(-1) ]

A steel scale gives correct reading at 10^(@)C . If the length of a rod is measured with the help of that scale at 30^(@)C then the measured length will be

A steel is 1.5 m long at 20^(@)C . What will be the increase in its length if it is heated up to 100^(@)C?" "alpha for steel =11 times 10^(-6@)C^(-1) .

At 30^@C , the hole in a steel plate has diameter of 0.99970 cm. A cylinder of diameter exactly 1cm at 30^@C is to be slide into the hole. To what temperature the plate must be heated? (Given : alpha_(steel)=1.1xx10^-5//^@C )

The difference in lengths of two metal rods A and B is 40 cm at all temperatures. Calculate the lengths of the two rods if alpha of A = 12xx10^(-6)//^@C and alpha of B= 18xx10^(-6)//^@C .

A hole is drilled in a copper sheet. The diameter of the hole is 4.24 cm at 27^@C . What is the change in the diameter of the hole when the sheet is heated to 227^@C ? Coefficient of linear expansion of Cu=1.7xx10^-5 "^@c-1

PATHFINDER-CALORIMETRY, THERMAL EXPANSION; HEAT TRANSFER-QUESTION BANK

One mole of an ideal gas undergoes a process P=P0/(1+(V0/V)^2). Here ,...
Text Solution
|
The above p-V diagram, represents the thermodynamic cycle of an engine...
Text Solution
|
A steel tape measures the length of a copper rod as 90.0 cm when both ...
Text Solution
|
The temperatue of an air bubble, while rising from bottom to surface o...
Text Solution
|
Two metallic spheres S1 and S2 are made of the same material and have ...
Text Solution
|
A spherical black body with a radius of 12 cm radiates 450 W power at ...
Text Solution
|
Three discs A,B and C having radii 2m, 4m and 6 m respectively are c...
Text Solution
|
A system S receives heat continuously from an electrical heater of owe...
Text Solution
|
If a black body radiates 10 calories per second at 227^@C, it will rad...
Text Solution
|
Two spheres of the same material have raii 1m and 4 m, temperature 400...
Text Solution
|
A block body radiates power P and maximum enertgy is radiated by it ar...
Text Solution
|
If a body coated black at 600 K surrounding by atmosphere at 300 K has...
Text Solution
|
Two different masses of a gas m and 2m are heated seperately in vessel...
Text Solution
|
One mole of helium is adiabatically expanded from its initial state (p...
Text Solution
|
Unit mass of a liquid with volume V1 is completely changed into a gas ...
Text Solution
|
The molar heat capacity in a process of a diatomic gas if it does a wo...
Text Solution
|
A thermally insulated rigid container contains an ideal gas heated by ...
Text Solution
|
A metal rod is shaped into a ring with a small gap. If this is heated
Text Solution
|
Let Vav, Vrms and Vp respectively denote the mean speed, the root-mean...
Text Solution
|
The two ends of a uniform rod of thermal conductivity K are maintained...
Text Solution
|