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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.
In the following experiment, a constant-pressure calorimeter containing 100 ml of H 2 O is used. The initial temperature of the calorimeter is 24.6 o C. If 18.6 g of CaCl 2 is a
A polyatomic (non-linear) molecule (like NH3) can rotate about any of three co-ordinate dimension. As it has 6 degrees of freedom, 3 rotational and 3 translational. At normal tempe
Describe binding energy. How does binding energy per nucleon vary with mass number? What is it significance.
Define Ideal Gas in One-Dimensional Potential? An ideal gas of particles, each of mass m at temperature ?? is subjected to an external force whose potential energy has the f
What is the raw file size for an image of 80 rows and 100 columns, with pixels on 14 bits and with an extra row for the header? The minimum and maximum values observed in a
#questionyour dog is running around the grass in your back yard. He undergoes successive displacements 3.50 m south, 8.20 m northeast, and 15.0 m west. What is the resultant displa
Examples of systems in equilibrium: a) a stone resting on the ground; b) a pencil balanced on your finger; c) a ladder placed against the wall, an aircraft flying at a co
Dirive an expretion for low of succecive disintigretion
What are the characteristics of dead stars? Dead stars are generally cold balls of material in empty space. A teaspoonful of white dwarf matter would weigh as more as an Ele
give the account of production of pure spectrum
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