MCQ
Stars are twinkling due to
- ADiffraction
- BReflection
- ✓Refraction
- DScattering
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$(i)$ with the flat face;
$(ii)$ with the curved face in contact with the paper.
In each case the cross mark is viewed directly from above. The position of the images will be

