When red, green, and blue colors of light are mixed in equal proportions, the resulting color will be white. This additive color mixing principle is used in devices like computer monitors and televisions to produce a full range of colors ...
Discussion Forum Latest Questions
Plane mirrors are used in making periscopes. They are placed at 45-degree angles to the line of sight, allowing light to be reflected from one mirror to another, enabling a person to see over or around obstacles by reflecting the ...
The power of the lens with a focal length of 25 cm will be +4D. The power of a lens in diopters (D) is calculated as the reciprocal of the focal length in meters, so a focal length of 25 ...
The mirror used by a dentist to check the teeth of a patient is concave. Concave mirrors provide a magnified image, which helps the dentist see a larger and clearer view of the teeth and gums, aiding in better examination ...
The image formed on the retina of the human eye is a real and inverted image. Light rays entering the eye converge onto the retina, where they form a small, inverted image of the visual scene, triggering neural signals that ...