| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| In 1704 Newton published a groundbreaking treatise on this science of light | optics | $1,000 | J | LITERATURE, SCIENCE & THE ARTS | 2017-11-20 | #7636 | |
| It's the branch of physics that deals with light & vision | Optics | $800 | DJ | SCIENCE | 1997-07-04 | #2975 | |
| It's the branch of physics that deals with light & vision | optics | $600 | DJ | SCIENCE | 1993-03-01 | #1961 | |
| The study of sound is acoustics, & the study of light, this | optics DD | $2,000 | DJ | PHYSICAL SCIENCE | 1989-03-17 | #1055 |