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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.
What is Otto Cycle? The cycle of a highly idealized gasoline engine can be approximated by the Otto cycle. 1 → 2 and 3 → 4 are adiabatic compression and expansion, respectively
One source of a star's energy is the fusion of two deuterons to form an alpha particle plus a gamma ray. a. Write down the nuclear equation for this fusion. b. Measure the m
how to find the direction of torque
Bone cancer - A portion of the skeleton being destroyed by cancer will be trying to rebuild itself and will take up more or many elements than normal bone. - The blood is injecte
Direction of Acceleration and Velocity Knowing the size of a distance or speed is frequently meaningful for creating comparisons. For example, for some reasons it may be enough
Question 1. Discuss the physical characteristics of an X-ray beam. Write a note on factors influencing the quality and intensity of the X-ray beam 2. Explain the constructio
Define the term multi-mode fibre shortly. Multi-mode fibre: This type of fibre permits more than one mode to travel by this. As this has to permit more number of modes to tr
A hollow sphere of radius R lies on a smooth surface. It is pulled by a horizontal force acting tangentially from the highest point. Find the distance travelled by the sphere durin
Echo: The sound heard after reflection from an obstacle is known as echo.
Question 1. Discuss how will you provide radiation safety to the public and the occupational workers in your radiology department? 2. Explain the cardinal principles of radi
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