MCQ
During a cloudy day, a primary and a secondary rainbow may be created, then the:
- Aprimary rainbow is due to double internal reflection and is formed above the secondary one.
- Bprimary rainbow is due to double internal reflection and is formed below the secondary one.
- ✓secondary rainbow is due to double internal reflection and is formed above the primary one.
- Dsecondary rainbow is due to single internal reflection and is formed above the primary one.
