Home
Class 11
PHYSICS
Eiffel tower is made up of iron and its ...

Eiffel tower is made up of iron and its height is roughly 300 m. During winter season (January) in France the temperature is `2^(@)`C and in hot summer its average temperature `25^(@)`C. Calculate the change in height of Eiffel tower between summer and winter. The linear thermal expansion coefficient for iron `alpha = 10xx10^(-6)" per "^(@)C`

Text Solution

Verified by Experts

`(DeltaL)/(L) = alpha_L DeltaT = DeltaL = alpha_L L DeltaT`
`DeltaT = 10 xx 10^(-6) xx 300xx23 =0.69 m = 69 cm`
Promotional Banner

Topper's Solved these Questions

  • SAMPLE PAPER 11 (UNSOLVED)

    FULL MARKS|Exercise Part III|9 Videos

  • SAMPLE PAPER 11 (UNSOLVED)

    FULL MARKS|Exercise Part IV|10 Videos

  • SAMPLE PAPER 11 (UNSOLVED)

    FULL MARKS|Exercise Part IV|10 Videos

  • SAMPLE PAPER -6 (SOLVED)

    FULL MARKS|Exercise PART-IV|12 Videos

  • SAMPLE PAPER 13 (UNSOLVED)

    FULL MARKS|Exercise Part -IV|10 Videos

Similar Questions

Explore conceptually related problems

An iron ring measuring 15.00 cm in diameter is a be shrunk on a pulley which is 15.05 cm in diameter. All measurements refer to the room temperature 20^0 C . To What minimum temperature should the ring be heated to make the job possible? Calculate the strain developed in the ring when in comes to the room temperature. Coefficient of linear expansion of iron =12 xx 10^(-6) C^(-1) .

A concrete slab has a length of 10 m on a winter night when the temperature is 0^@C . Find the length of the slab on a summer day when the temperature is 35^@C . The coefficient of linear expansion of concrete is 1.0xx10^(-5) C^(-1) .

An aluminium rod and a copper rod of equal length 1.0 m and cross-sectional area. 1cm^(2) are welded together as shown in figure. One end is kept at a temperature of 20^(@)C and the other at 60^(@)C Calculate the amount of heat taken out per second from the hot end. thermal conductivity of aluminium =200Wm^(-1)C^(-1) and of copper =390Wm^(-1)C^(-1) .

The length of a metal rod at 0^(@)C is 0.5m. When it is heated, its length increases, by 2.7 mm.The final temperature of the rod is (coefficient of linear expansion of the metal =90xx10^(-6)//^(@)C )……………. .

A railway track (made of iron) is laid in winter when the average temperature is 18^(@)C . The track consists of sections of 12 m placed one after the other. How much gap should be left between two such sections so that there in no compression during summer when the maximum temperature goes to 48^(@)C ? Coefficient of linear expansion of iron = 11 xx 10^(-5)C^(-1) .

An iron tyre is to be fitted on a wooden wheel 0.1m in diameter. The miameter of the tyre is 6 mm smaller than that of the wheel. The tyre should be heated by a temperature of (coefficient of volume expansion or iron is 3.6xx10^(-5)//^(@)C )………….. .

An iron rod of length 50 cm is joined at an end to aluminium rod of length 100 cm. All measurements refer to 20^(0) C . Find the length of the composite system at 100^(o) C and its average coefficient of linear expansion. The coefficient of linear expansion of iron and aluminium are 12 X 10^(-6 ) C^(-1) and 24 X10^(-6 ) C ^(-1) respectively.

A glass vessel measures exactly 10cm xx 10 cm xx 10 cm at 0^@C . It is filled completely with mercury at this temperature. When the temperature is raised to 10^@C , 1.6cm^3 of mercury overflows. Calculate the coefficient of volume expansion of mercury. coefficient of linear expansion of glass = 6.5 xx 10^(-6)C^(-1) .

A circular disc made of iron is rotated about its axis at a constant velocity Omega. Calculate the percentage change in the linear speed of a particle of the rim as the disc is slowly heated from 20^@C to 50^@C keeping the angular velocity constant. Coefficient of linear expansion of iron =1.2 xx 10^(-5)C^(-1) .

A meter scale is made of steel reads accurately at 20^@C . In a sensitive experiment, distance accurate up to 0.055 mm in 1 m are required. Find the range of temperature in which the experiment can be performed with this meter scale. Coefficient of linear expansion of steel =11 xx 10^(-6 @)C^(-1) .