divergence theorem
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Fermat's principle: principle of least time (P. de Fermat): The principle, put onward by P. de Fermat that explains the path taken by a ray of light among any two points in a system is for all time the path which takes the least time.
why rockets are also called as projectile
Describe the procedure how radiation emitted from the body? Illustrate in brief.
Kirchhoff's law of radiation (G.R. Kirchhoff): The emissivity of a body is equivalent to its absorbptance at similar temperature.
Write down the vital difference between the electron and a beta ray?
: A voltage v = 150 + j180 is applied across an impedance and the current flowing is I = 5 - j4 find ? A, impedance . B, resistance. C, reactance. D, power consumed.
Coulomb's law (C. de Coulomb): The basic law for electrostatics, equivalent to Newton's law of universal gravitation. It defines that the force between two point charges is proportional to the arithmetical product of their respective
State is it possible that the nucleus consists of negative mass defect?
What do you mean by the term crest? Briefly illustrate it.
Briefly define or explain the cause of Brownian motion?
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