If You Bring an Object to Half of the Original

question 62

True/False

If you bring an object to half of the original distance,the apparent brightness will be 4 times as bright as before.

---

Definitions:

Radioactive Substances

Materials containing or emitting radiation due to the disintegration of atomic nuclei, often used in medical treatments and scientific research.

CT Scan

Short for Computed Tomography Scan, a diagnostic imaging procedure that uses a combination of X-rays and computer technology to produce cross-sectional images of the body.

Radiology

A medical specialty that uses imaging techniques such as X-rays, CT scans, and MRI to diagnose and sometimes treat diseases.

Roentgen Diagnosis

The use of X-rays to diagnose diseases or abnormalities within the body, named after Wilhelm Roentgen who discovered X-rays.