velocity selector meaning in Hindi

Examples

1. Neutron-velocity selectors are commonly used in neutron research facility to produce a monochromatic beam of neutrons.
2. It comprises all established instrument hardware such as neutron optics ( e . g . guides, apertures, lenses ), wavelength selectors ( e . g . disc choppers, velocity selectors ) and a growing variety of samples, allowing to perform virtual experiments including sophisticated setups like polarized neutrons in magnetic fields.