Physics
In a typical H-R diagram, stars are graphed by these two characteristics:
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Power of a lens is one diopter if its focal length is
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Which one of the following has the greatest energy gap ?
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Speed gun uses__________?
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Joule Thomson effect is based upon __________ ?
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When we excite some atoms by heat collision or electrical discharge they will________________?
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Thermal equilibrium law:?
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One million cycles per second is called:
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The angular wave number is expressed by
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