back scatter meaning in Hindi

Examples

1. Low-dose " back scatter"
2. The essential principles of OFDR technology are the quasi continuous wave mode employed by the laser and the narrow-band detection of the optical back scatter signal.
3. In 1981, Dr . Fried carried out the first analysis evaluating and establishing the feasibility of the use of atmospheric laser back scatter to control adaptive optics a concept which now goes by the name of laser guide-star.
4. The opening paragraph of their letter of concern reads : " We, a number of University of California, San Francisco faculty, are writing see attached memo to call your attention to our concerns about the potential serious health risks of the recently adopted whole body back scatter X-ray airport security scanners.