Question

A monochromatic light passes through a grating to produce a pattern on a screen at a distance from the grating. Choose the correct statement(s) if the number of lines per com of the grating is doubled.

A. The diffraction pattern becomes brighter.

B. The wavelength of the light becomes longer.

C. The distance between bright fringe increases.

D. The number of observable bright fringes increases

Answer 1

A. The diffraction pattern becomes brighter.

C. The distance between bright fringe increases.

D. The number of observable bright fringes increases