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Suppose that the x rays are emitted from a focal spot isotropically. The photon flux is 3.28 x 106 photons mm-2 sec-1 at a distance of 0.75 m from the focal spot. What is the photon flux at a distance of 10 cm from the focal spot? Neglect the effects of air attenuation.
Penetration power of proton is: (1)More than electron (2)Less than electron (3)More than neutron (4)None Ans:(2)Less than electron
explain the capacitance of spherical capacitor when the inner surface is earthed
Number of neutron in C 12 is (1)6 (2)7 (3)8 (4)9 Ans: (1)6
Q. Ski Saga Problem? James Bond is skiing down a snowy slope in an attempt to run off a hostile pursuer. Unfortunately the pursuer has a speed advantage since James is only abl
As an electron passes close to the positive nucleus of atom, the electron is moved from its path as given in diagram. This results in deceleration of the electron. The loss in powe
In terms of the wavelength of the pertinent light how thick must the layer of transparent optical coating on a transparent medium be in order to create maximum destructive interfer
assignment on micro waves
What will happen when a ball is dropped in a hole passing by the centre of earth through out diametrically? Ans) The ball will implement simple harmonic motion centered at the ce
Prism: A transparent refractive device having of three rectangular and two refractive surfaces is known as prism. N = Sin (A + Dm) /2 Sin A/2 Where a is
Superconductivity The phenomena from which, at sufficiently low temperatures, a conductor can conduct charge along with zero resistance. The current theory for describing supe
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