Select True or False for the following statements about diffraction of light on a diffraction gratin If the distance between the screen and the grating is halved, then distance between the bright fringes doubles A: TrueB: False If the wavelength of the light is decreased, then the distance between the bright fringes decreases. A: TruelOB: False If the line density of the grating is halved, then the distance between the bright fringes doubles A: True OB: False Solution Solution: As the formular for the Bandwidth ? = (D/d) ? a) from the formula we can say is D(distnace between grating and the screen is halved then the bandwidth will be halved so A is FALSE b) Again according to formula if we decrease the wavelength of light, distance between the finges decreases is Right so, TRUE c) if the line density of the grating is halved, then the distance between the bright fringes is also halved so it is, FALSE thanks. .