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a. A certain radioactive material emits gamma rays with energy 1 MeV. Another sample of radioactive material emits gamma rays with energy 10 keV. If both of these emit the same amount of energy per unit time, compare their activities.
b. A source of 198Au with a half-life of 2.69 days has an initial activity of 5 Ci. Calculate the activity after 4.0 days. Express this activity in Bq.
Copper losses: These losses occur because of ohmic resistance of the transformer windings. If I1 and I2 are primary and secondary currents correspondingly and R1and R2 are the res
explain in detail the construction and working of a scientillation counter
Q. As-per to Coulombs Law if two charged particles are repelled with a given force at a distance d by what multiple will the force decrease by if d is increased by 4 times? An
Determine the Shear Force in kN rounded to 1 DP and Bending Moment in kN.m rounded to 1 DP at point C in the beam when the UDL on the beam is P52 kN/m (as for the previous question
Characteristics of a Transmitted Pulse The below animation depicts the boundary behavior of a pulse that is moving along a less dense incident and medium towards that is approa
explain compound microscope
Explain about the total internal reflection. Total internal reflection: While light is incident onto a medium of lesser index of refraction, ray is bent ahead of the norma
A student sits on a stool holding a 5.0-kg dumbbell in both hands. He extends his arms such that each dumbbell is 0.60 m from the axis of rotation. The student's moment of
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What are the disadvantages of polymer fibers optics? The ends of polymer fibers can't operate along with high temperatures. Illuminators or light sources are required with a sc
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