Modern Physics
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what is difference between impedence and reactance?
Circuits with capacitors and inductors are more complicated than the resistive circuits we talked about earlier, in that their behavior depends on the frequency: A “voltage divider ” containing a capacitor or inductor will have a frequency dependent division ratio.…
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Radioactive carbon dating formula and method
Radioactive dating Any of several methods for determining the age of archaeological and fossil remains rocks, etc, by measuring some property of the organic or inorganic matter that changes with time. This property may be dependent on some aspect of…
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Does a photon have a de Broglie wavelength?
Yes a photon has de Broglie wavelength.In 1924,Louis de Broglie proposed that a particle must also act like wave,in silmilar way,wave behave like particles. In de Broglie hypothesis an electromagnetic wave is the de-Broglie wave for a photon moving with…
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What instrument is used to measure atmospheric pressure?
The barometer is an instrument used to measure atmospheric pressure. How can we measure atmospheric pressure by mercury barometer? Mercury barometers consist of a glass tube about 80 cm long, closed at one end. The tube is filled with mercury…
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Best laptops for Students (2021)
Whether to return to classrooms or to continue school work online, these are the best laptops for students Being a student these days – be it high school or college or even graduate school – is very different from how…