Diamond appears shiny primarily due to its high refractive index and strong dispersion of light. When light enters a diamond, it undergoes multiple internal reflections at different angles, enhancing its brilliance and sparkle. This phenomenon is known as diamond’s “fire” ...
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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 ...
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 ...
A lunar eclipse occurs on a full moon day when the Earth passes between the Sun and the Moon. This alignment causes the Earth’s shadow to fall on the Moon, darkening it partially or completely depending on whether it is ...
A coin placed in a vessel filled with water appears slightly raised due to the refraction of light. When light passes from water into air (or vice versa), it changes direction, making the coin appear higher than its actual position ...