Explain the Machines ?

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When is fluorescence strong?

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how much mercury overflows when a glass vessel filled to the brim with 50 cubic centimeter of mercury 15°C is heated to 75°C of glass?

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What is a Pressure ?

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Describe the Periscope?

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Does an aeroplane overtaking other aeroplane pass through its right or left ?

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how does a basic rubber ink filler work?

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What are the characteristics of dead stars?

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i measured a 3-ph capacitor with a multimeter which is not connected to supply... but i could get the phase to phase voltage... how tis is possible..????

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Explain about Cosmic rays?

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Explain what is different between secondary electron image and back scattered electron image?

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define rectilinear propagation of light?

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