True: RED IS PRIMARY COLOUR, THERE ARE TWO TYPES OF COLOURED LIGHT, RED + BLUE+ GREEN= WHITE, CYAN IS SECONDARY COLOUR, SECONDARY COLOURS ARE COLOURS PRODUCED WHEN TWO PRIMARY COLOURS ARE COMBINED, False: BLUE IS SECONDARY COLOUR, BLUE + RED =CYAN, BLACK OBJECTS APPEAR BLACK BECAUSE THEY ABSORD NOT ALL COLOURS IN WHITE LIGHT, THE SUBSTRACTION OF LIGHTS IS THE COMBINATION OF COLOURED LIGHTS TO PRODUCE A NEW COLOUR, AN OBJECT WITH SECONDARY COLOUR ONLY REFLECTS ITS OWN COLOUR,

ADDITION AND SUBSTRACTION OF LIGHT

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