The coefficient of linear expansion of brass and steel are and . If we take a brass rod of length and steel rod of length at , their difference in length will remain the same at a temperature if |
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a) |
b) |
c) |
d) |

The coefficient of linear expansion of brass and steel are and . If we take a brass rod of length and steel rod of length at , their difference in length will remain the same at a temperature if |
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a) |
b) |
c) |
d) |

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