Grade 11Thermal Physics
A railway track (made of iron) is laid in winter when the average temperature is 18°C. The track consists of sections of 120 m placed one after the other. How much gap should be left between two such sections so that there is no compression during summer when the maximum temperature goes to 48°C ? Coefficient of linear expansion of iron = 11 x 10 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 120 m placed one after the other. How much gap should be left between two such sections so that there is no compression during summer when the maximum temperature goes to 48°C ? Coefficient of linear expansion of iron = 11 x 10 6/°C.
