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The velocity with which the group of waves travels is called as group velocity
or the velocity with which a ray packet goes is called as group velocity
A beam of light of wavelength λ = 5000Å falling normally on a plane diffraction grating. The 1 st order spectrum is derived in a direction making an angle θ 1 with the norma
Faraday constant; F (M. Faraday) The electric charge carried through one mole of electrons (or singly-ionized ions). This is equivalent to the product of the Avogadro constant
All the traveling waves satisfy a differential equation which is known as the wave equation
for small values of theta sine theta is equal to tan theta . how?
The SI unit of pressure is the: a) Torr b) Dyne per centimeter squared c) Atmosphere d) Pascal Ans: The SI unit of pressure is the Pascal.
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Why is extended source use in Newtown ''s ring experiment?
Input Capacitor C in An ac signal is supplied to gate of the FET through an electrolytic capacitor known as input capacitor C in . This capacitor allows only ac
The property of liquids (or gases) by virtue of which a backward dragging force (viscous drag) acts tangentially on the layers of the liquid in motion and it tries to stop the moti
a) Two charges of the value 15X10 -9 coulomb and 30X10 -9 coulomb are locate at a distance 6 cm. Determine the intensity of electric field at point which is at a distance 2 cm fro
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