Explain about Ultraviolet rays?

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Explain the Machines ?

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What is L.D.R(light dependent resistor)

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By which formula, the values in one thermometer can be converted into that of another thermometer ?

2 Answers  

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while calculating KVA using Volt and Ampere Reading, why we multiply the result with Square Root of 3 (i.e, 1.73)?

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Explain the Photometry ?

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Why dies starch stiffen the clothes ?

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Explain the Transparent ?

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what is the safest day to have sex with a girl???

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What is the smallest size of plane mirror in which a man can see his fill image length ?

1 Answers  

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What makes the telegraph wires hum?

2 Answers  

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What is different between secondary electron image and back scattered electron image?

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