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ICSE Class 8 Physics Question 16 of 19

Heat Transfer — Question 10

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Question

Question 8(c)

Explain the following:

Gaps are left between the successive rails on a railway track.

Answer

In summer season due to rise in temperature, each rail expands in length. By leaving a gap between the two rails, the rails get a chance to expand in this space. This prevents the rails from bending sideways and derailing the train.