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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.
#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
State whether the following statements are true or false: (a) The purpose of a transistor amplifier is to enhance the frequency of the input signal. (b) The gain of an ampl
Why magnetic poles are reversed at a given position on a deflection magnetometer to take readings? The magnetic moment of the magnet is 30 A-m 2 . Its length 10cm. What is its
Active network:- It can be described as a network, which contains one or more than single source of e.m.f. in it.
A rectangular coil of sides 8cm by 6cm is rotating in a magnetic field such that the longer sides cut the magnetic field. Calculate the maximum generated e.m.f. if there are 6
What is meant by the term 'modulation'? Define with the help of a block diagram, how the process of modulation is carried out in radio broadcasts.
An approximate equation for the velocity distribution in a rectangular channel with turbulent flow is where umax is the velocity at the surface, y is the distance from the
A circuit which employs a DIRECT CURRENT source has a branch which has a capacitor. After the circuit has reached a steady state, what is the magnitude of the current in the c
Ferromagnetic materials exhibit magnetic behaviour similar to ferromagnetism below a critical temperature, known as curie temperatures. Above which it turns out to be paramagnetic.
Q. What are uses of ultra-violet radiations? Uses of ultra-violet radiations: (i) They are utilized to destroy the bacteria and for sterilizing surgical instruments.
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