The english physicist _____ showed in 1801 that light behaves as a wave by shining light through two closely spaced slits and observing the resulting pattern of light on a white screen.
HI, MATE HERE'S YOUR ANSWER: THOMAS YOUNG WAS THE ENGLISH PHYSICIST WHO SHOWED THAT LIGHT BEHAVES AS A WAVE BY SHINING LIGHT THROUGH TWO CLOSELY SPACED SLITS AND OBSERVING THE RESULTING PATTERN OF LIGHT ON WHITE SCREEN. HOPE IT HELPS.
