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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.
why sky is blue
What is the work done to take a particle of mass m from surface of the earth to a height equal to 2R (R=radius of earth )? Ans) Initial PE= - GMm/R Final PE = - GMm/3R
A 50.0-g toy car travelling with a velocity of 3.00 m/s due north collides head-on with a 180.0-g fire truck travelling with a velocity of 0.50 m/s due south. The toys stick to
explain the negative result of speciale theory of relativity
Can a solid and liquid together be possible? Actually, substances can exist in all three states of matter concurrently if the conditions are right. The triple point of a substa
Write the relation for the force acting on a charge carrier q moving with a velocity by a magnetic field in vector notation. Using this relation, reduce the conditions under which
Con you describe harmonics? How are stationary waves formed in a closed pipe? Illustrate the various modes of vibrations in a closed pipe and establish the relation between their f
If there is a fire accident in an industry, what a safety enginner will do? Ans) Normal 0 false false false EN-IN X-NONE X-NONE
Number of Terminals in a MOSFET is (A) Two (B) Three (C) Four (D) Five Ans: Number of Terminals in a MOSFET is Three.
TEMPERATURE: When the conduction electrons are only scattered by thermal vibrations of thermal ions, then τ in the mobility expression refers to the mean time between scatterin
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