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Question
Identify the application which involves thermal expansion of liquids.
Identify the application which involves thermal expansion of liquids.
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Solution
The correct option is A Thermometer
Bridge, rail track and pendulum involves thermal expansion in solids as the expansion is seen in their solid parts upon absorbing the heat.
But incase of thermometer, mercury, which is a liquid, is used which expands upon absorbing the heat and hence involves thermal expansion in liquids.
Bridge, rail track and pendulum involves thermal expansion in solids as the expansion is seen in their solid parts upon absorbing the heat.
But incase of thermometer, mercury, which is a liquid, is used which expands upon absorbing the heat and hence involves thermal expansion in liquids.
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