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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.
The average distance of an electron in an atom from its nucleus is of the order of: (1) 10 6 m (2) 10 -6 m (3) 10 -10 m (4)10 -15 m Ans: (3) 10 -10 m
Image Formation for Plane Mirrors Not all people who are performance the object within the mirror will sight along the similar geometrical line of sight. The precise direction
An x-ray photon collides with a free electron, and the photon is scattered. During this collision there is conservation of: a) Momentum but not energy b) Neither momentu
Which of the subsequent is a principal ray for the case of an actual physical object and a convex (converging) lens? Indicate all that apply. Ans: In the thin lens approxi
can whole charge of a body be transfered to other?
In the Compton effect, a photon of wavelength l collides with a stationary electron. The wavelength of the emitted photon is: a) longer than l b) shorter than l c)
my question is regarding value of pie whether its decimal value which has non-repeating nature goes to infinity or it ends at some place?
Out of ordinary and extra-ordinary waves, which wave obeys Snell's law?
Explain about Electric Field Electric Field: Field formed by a single or group of charges that permeates all space. Fields are responsible for making forces at a distance
The magnetic induction at a point 15 cm from a long straight wire carrying a current is 4 X 10 -6 T Compute the current. (J - 12) B = μ o I/2πa I = 2πa X B/μo Current I
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