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Derive the mathematical relation connecting n,u,v and R for refraction at a spherical surface concave towards a point object in a denser medium.
A long cylindrical volume haves a uniformly distributed charge of density ρ and radius R. Determine the electric field at a point P inside the cylindrical volume at a distance x (x
What are coherent sources? Why are coherent sources required to produce interference of light? Give an example of interference of light in everyday life. In Young's double slit exp
Q. Two wires of same material and same length have resistances 5 and 10 respectively. Find the ratio of radii of the two wires. R = ρl / A = ρl / πr 2 R 1 = ρl / A = ρl
Q. How much should be the voltage of an X-ray tube so that the electrons emitted from the cathode may give an X-ray of wavelength 1 A o after striking the target? λmin = 124
if CPH has mass, so CPH Theory is able explain the universe future. Universe should collapse. And it is able explain dark matter too. Am I wrong? Answer; you are correct that C
what to right
Huygen's principl e : Huygen's principle states that every point of a wave front behaves as the source of small secondary wavelets which spread out in all directions with a velocit
Why does heat cause matter to expand? Water contracts as it cools, like all other liquids, unless it reaches a temperature of about 4 degrees Celsius, at which point it enlarge
Electric current may be expressed in which one of the following units? a) coulombs/volt b) joules/coulomb c) coulombs/second d)
Advantages of Integrated Circuits (ICs) over conventional circuits: (1) Very small size- thousand times smaller than discrete circuit. (2) Very small weight due to miniatu
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