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Bragg's law (Sir W.L. Bragg; 1912)
While a beam of x-rays strikes at crystal surface wherein the layers of atoms or ions are separated regularly, the maximum intensity of the reflected ray takes place while the complement of the angle of incidence, theta, the wavelength of x-rays, lambda, and the distance among layers of atoms or ions, d, are associated by the equation
2 d sin theta = n lambda,
Where n is an integer.
what is alternating current
Uses of radio isotopes: Used in i)Medicine ii) Industry iii) Agriculture iv) Meteorology and v) Radio active dating.
Suppose that a colleague comes to you for help prior to conducting an experiment with two treatments to determine the effects on the density (weight) of cornbread. The recipe for
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help by post offoce box explan rasistance of a wire
Where is the magnetic field because of a bar magnet strongest? Answer: This is just an experimental reality.
two charge(q) each are kept 1m apart, where should third charge be placed in order to get third charge -q/4
A glass sphere of radius 15 cm has a small air bubble at a distance of 6 cm from its centre. When viewed normally along its diameter from the nearest side, the bubble seems to be 7
A certain machine exerts a force of 200 newtons on a box whose mass is 30 kilograms. The machine moves the box a distance of 20 meters along a horizontal floor. What amount of wor
Particle function: Protons The number of protons in an atom determines the kind of material: Eg. Hydrogen 1 proton Helium 2 protons Lithium 3 protons B
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