What notion was challenged by the work of postwar-era scientists?

There are no answers.

Accuracy is impossible.

Science can explain everything.

Scientific theories reflect reality.

The notion that was challeneged by the work of postwar-era scientists (This refers to the works of quantum physicists) was that science could explain everything - this was shown through the work in quantum physics which showed that certain information about particles couldn't simply be accessed.

The correct answer for the question that is being presented above is this one: "Science can explain everything." The notion that was challenged by the work of postwar-era scientists is that Science can explain everything. There are some instances that there is beyond Science and can't be explained by Science.