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Two waves of equal frequency have amplitudes 2 units and 3 units respectively. When they superpose coherently the intensity of the resultant wave is I1. The intensity becomes I2 when they superpose incoherently. Evaluate I1 / I2.
The density of neutrons is of the order: (1)10 3 kg/ cc (2)10 6 kg/cc (3)10 9 kg/cc (4) 10 11 kg/cc Ans:(4) 10 11 kg/cc
An inductor is generally constructed as a coil of conducting material, characteristically copper wire, wrapped around a core either of air or a ferromagnetic material. Core materia
experiments on how sound waves travel faster in iron
The water will not spill Get a small pail and fill it nearly full with water . Swing it around rapidly at arms' length and the water will not spill because of centrifugal force
What is the ratio of mass of an electron to the mass of a proton: (1) 1 : 2 (2) 1 : 1 (3) 1 : 1837 (4) 1 : 3 Ans: 1: 1837
If the angle of incidence is 60 degrees,then what is the angle of deviation?
Calculate mass of an electron accelerated to kinetic energy of 2 M eV.
A Plane polarized light is incident on a piece of quartz cut parallel to its axis. Evaluate the least thickness for which ordinary ray and extraordinary ray combine
Oscillation of mercury coloumn in a U-tube
Three charges are arranged on the vertices of an equilateral triangle. Find the dipole moment of the combination ? Take any of two charges and search their dipole moment.(charg
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