Question

An iron tyre is to be fitted onto a wooden wheel 1.0 m in diameter. The diameter of thetyre is 6 mm smaller than that of wheel. The tyre should be heated so that its temperature increases by a minimum of (coefficient of volume expansion of iron is 3.6× 10–5/oC):   

Solution

Correct option is

500oC

                  

       

SIMILAR QUESTIONS

Q1

80 gm of water at 30oC is poured on a large block of ice at 0oC. The mass of ice that melts is:

Q2

250 gm of water and equal volume of alcohol of mass 200 gm are replaced successively in the same calorimeter and cool from 60oC to 55oC in 130 seconds and 67 seconds respectively. If the water equivalent of the calorimeter is 10 gm, then the specific heat of alcohol in cal/gm-oC is:   

Q3

The sprinkling of water reduce the temperature of a closed room because: 

Q4

Two bars of copper having same length but unequal diameter are heated to the same temperature. The change in length will be:  

Q5

The beaker is completely filled with water at 4oC. It will overflow:

Q6

When a metal rod is heated it expands because: 

Q7

Expansion during heating: 

Q8

Two rods of lengths L1 and L2 are made of materials whose coefficients of linear expansion are α1 and α2. If the difference between the two lengths is independent of temperature:  

Q9

When a strip made of iron (α1) and copper 2 > α1) is heated: 

Q10

If the length of a cylinder on heating increases by 2%, the area of its base will increase by: