monochrome receiver meaning in Hindi

This ensures a monochrome receiver will display a correct picture in black and white, where a given color is reproduced by a shade of gray that correctly reflects how light or dark the original color is.
In a monochrome receiver the luminance signal is amplified to drive the control grid in the electron gun of the CRT . This changes the intensity of the electron beam and therefore the brightness of the spot being scanned.
Early colour television studio cameras consisted of four tubes to relay the picture : three were receptive to colour ( red, green and blue the chrominance signal ) with the fourth providing a high-resolution monochrome image ( the luminance signal ) which was still required as many viewers still watched on monochrome receivers.