Understanding, certainty on properties of light (Question 4).
| Q 4. What happens when green light is shone on a shadow created by red light? | |||
|---|---|---|---|
| Response options | Number of responses (%) | Average certainty correct answers (1–5) | Average certainty wrong answers (1–5) |
| ① Green |
38(29.2%) | 2.42 | 2.86 |
| ② Black | 75(57.7%) | ||
| ③ Red | 2(1.5%) | ||
| ④ Purple | 10(7.7%) | ||
| ⑤ Yellow | 5(3.8%) | ||
*Scientific concept