Characteristic x-rays, which are useful in diagnostic radiography, are more likely to be produced when the projectile electron interacts with a bound electron in which shell?

a.) is the correct answer.

explanation:

battery with hi vtge high val resist in series

i think the answer would be reserve.

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.