In: Physics
A good radiograph is taken with 36 mAs, 100 RS and a 5:1 grid. What mAs value should be used if a 200 RS and a 8:1 grid is substituted?
y varies inverse to the square of x and y=25 when x=2. Find the new value of x when y=4?
A radiograph has an intensity of 100 mR at a distance of 240 cm. What is the intensity at 120 cm?
A good radiograph is obtained with the following technique: 24 mAs, 100 RS, 100 SID on table top. What should the new mAs value be if a technique of: 200 RS, 200 SID and a 5:1 grid are substituted?
z varies inverse to y and y varies direct to square of x. The initial values of these variables (x,y,z)= (20,36,40) Find the new value of z when x=10.