Rainbows form due to refraction, dispersion, and reflection of sunlight in water droplets, typically when the sun is low in the sky (morning or late afternoon), not overhead.
Case | Mirror | Focal Length (cm) | Object Distance (cm) |
---|---|---|---|
1 | A | 20 | 45 |
2 | B | 15 | 30 |
3 | C | 30 | 20 |