Multiple choice

The screen of a cinema hall is always white and rough because light rays of all colours falling on the screen suffer ____.

  1. total absorption

  2. total reflection

  3. refraction

  4. scattering

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The screen of a cinema hall is made white and rough so that light rays undergo diffuse scattering in all directions. This ensures that the projected image is clearly visible to viewers seated at different angles across the entire hall.