Digital movie projectors work on the principle of

Options

A. Reflection from micromirrors
B. Refraction from thin lenses
C. Dispersion from thin prisms
D. Total internal reflection from optical fibres

Answer

**Step-by-Step Solution:**

1. **Understanding the Digital Movie Projector**: Digital movie projectors are devices used to project films and videos onto a screen in a theater setting. They utilize light and mirrors to create images.

2. **Principle of Operation**: The primary principle behind digital movie projectors is the reflection of light. The projectors emit light that is directed towards a series of micro mirrors.

3. **Role of Micro Mirrors**: These micro mirrors are positioned at different angles and are responsible for reflecting the incoming light. Each mirror can tilt to direct light in various directions.

4. **Color Separation**: When the light hits these micro mirrors, it is reflected and can also be split into its component colors (like red, green, and blue). This color separation is crucial for creating a full-color image.

5. **Image Formation**: The separated colors are then directed onto the screen through a series of additional mirrors and lenses, allowing the viewer to see the projected image.

6. **Conclusion**: Therefore, digital movie projectors work on the principle of reflection from micro mirrors, which helps in splitting light into its component colors and projecting the final image onto the screen.

**Final Answer**: Digital movie projectors work on the principle of reflection from micro mirrors.

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