Lumen is the unit of luminous flux, which measures the total amount of visible light emitted by a light source per unit of time. It quantifies the brightness of light as perceived by the human eye, regardless of the direction ...
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Myopia, also known as nearsightedness, is a common vision condition where close objects appear clear, but distant objects are blurry. This occurs because the eye focuses light in front of the retina rather than directly on it. Myopia can be ...
To prevent farsightedness, we use a convex lens. Farsightedness, or hyperopia, is a condition where distant objects are seen more clearly than near ones. A convex lens converges light rays before they enter the eye, helping to focus the image ...
Plants absorb intensely blue and red light. These wavelengths are crucial for photosynthesis, as they are efficiently absorbed by chlorophyll, the pigment responsible for capturing light energy. This absorption drives the process of converting light energy into chemical energy used ...
In fiber optic communication, the signal flows in the form of light waves. Optical fibers transmit data using pulses of light that travel along the fiber’s core, which is typically made of glass or plastic. These light waves carry digital ...