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1. Consider two monoenergetic photon beams with the same photon fluences. In one beam the photons are 100 keV and in the other they are 1 MeV. Determine the most appropriate relation between both exposures (X).
2. Electrons with kinetic energy of 1.0 MeV have a speci c ionization in air of 6000 IP/m whereas alpha particles of 2.0 MeV have an LET in air of 0.175 keV/μm. What value is closest to the ratio LET(alphas)/LET(electrons) in air.
A 25 N box is pulled vertically upward by means of a cord.Find the acceleration of the box if the tension in the cord is 35 N.
Surface tension can be explained in given possible ways: (i) The property of a liquid on account of which it tends to keep minimum number of molecules in its free surface is d
A particle with a charge of -1.5uC and a mass of 2.5x10-6kgis released from rest at point A and accelerates toward point B, Arriving there with a speed of 42m/s. (a) What is the po
Transverse Waves: The traveling waves in which particles of the elastic medium vibrate about perpendicular to the direction of propagation of waves are known as transverse wave
#question.law of successive disintegration and conditions of radioactive equilibrium?
If W is atomic weight and N is the atomic number of an element, then: (1) Number of e -1 = W- N (2) Number of 0 n 1 = W- N (3) Number of 1 H 1 = W-N (4) Number of 0
The contribution of ionic polarization takes account of the fact that when in a molecule some of the atoms have an excess positive or negative charge (resulting from the ionic char
explain the working of michelson interferometer
As shown in the figure below, a source at S is sending out a spherical wave: E 1 =(A ×D/r) cos( wt-2πr/ λ) ; where r is the distance to source S. In addition, there is anoth
Photoelectric electricity is produced directly from solar energy when which following are absorbed in a semiconductor to create an electric current? a) Protons b) Electron
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