The rainbow displays a continuous spectrum of colors. It typically shows seven distinct colors: red, orange, yellow, green, blue, indigo, and violet. This sequence of colors is formed due to the dispersion and refraction of sunlight through water droplets in ...
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Cracked glass appears shiny due to reflection. When light encounters the cracked surface, it reflects off the irregularities, creating a shiny appearance. This reflection occurs because the smooth surfaces of the cracks act as mirrors, bouncing light back towards the ...
When light transitions from a denser medium to a rarer medium, such as from glass to air, it can internally reflect. This phenomenon occurs due to the change in the refractive index at the interface. Total internal reflection is crucial ...
A stone at the bottom of a pond appears higher than its actual position due to refraction of light. As light travels from water to air, it bends away from the normal, causing the stone to appear at a shallower ...
Endoscopy, the technique used to investigate the stomach or other internal organs, is based on the phenomenon of total internal reflection. This principle allows light to be transmitted through flexible optical fibers, enabling visualization of internal structures with minimal invasive ...
A mirage is an example of refraction. It occurs when light passes through layers of air at different temperatures, bending the light rays. This bending creates the illusion of water or a distorted image on surfaces like roads or deserts, ...
When a compact disc (CD) is viewed in sunlight, the colors similar to those of a rainbow are seen due to the phenomena of reflection and diffraction. The CD’s surface consists of closely spaced tracks that act as a diffraction ...
The first law of thermodynamics, also known as the law of energy conservation, protects energy. It states that energy cannot be created or destroyed, only transformed from one form to another.
Steam burns hands more than boiling water because steam contains latent heat. When steam condenses on the skin, it releases this latent heat, transferring more energy to the skin compared to boiling water at the same temperature. This additional heat ...
The latent heat of vaporization of water is 536 Cal/g. This value represents the amount of heat required to convert 1 gram of water at its boiling point into steam without a temperature change.