In flashlights:
- The bulb is placed at the focal point of the concave mirror.
- The light rays emitted from the bulb strike the concave surface of the mirror and converge at the focal point, creating a bright spot of light.
- The shape of the mirror concentrates the light into a narrow beam, enhancing its brightness and making it easier to see in the dark.
In automobile headlights:
- Concave mirrors are used to reflect light from the bulb and focus it in front of the vehicle, illuminating the road ahead.
- The bulb is positioned near the focal point of the mirror, which ensures that the light rays converge and form a focused beam.
- This concentrated beam of light improves the visibility for drivers, especially during night-time driving.
The ability of concave mirrors to concentrate and direct light efficiently makes them suitable for use in various applications where a powerful, focused beam of light is required.
