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A glass mirror used in a mountaintop telescope is subject to temperatures ranging from -15°C to 45°C.
At the lowest temperature, it has a diameter of 5.1 m.
If the coefficient of linear expansion for this glass is 3.0 x 10-6°C-1.
What is the maximum alter in diameter the mirror undergoes because of thermal expansion?
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Derive a mathematical expression for the force per unit length experienced by each of the two long current carrying conductors placed parallel to each other in air. Hence explain o
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A copper rod which is 1 centimetre in diameter carries a current of 5 amps. The current is distributed uniformly over the rod. The magnetic field half way among the axis o
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Pascal's principle: Pressure applied onto an enclosed incompressible static fluid is transmitted undiminished to all of the parts of the fluid.
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