Physics
Electron discovered by?
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Semiconductor diode works as rectifier because______________?
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Candela is unit of________?
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Internal energy________________?
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Product of wavelength and time period is _______________?
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Magnifying power of simple microscope______________?
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Dangerous sound level?
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The densest substance on the Earth is ——–.
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Product of time period and frequency is ____________?
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