The color of a star tells us about its temperature. Stars emit light across a spectrum, and their color corresponds to the temperature of their surface. Hotter stars appear bluish-white, while cooler stars appear reddish. This relationship between color and ...
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The speed of light is minimum while passing through a medium like glass, where its velocity is slower compared to its speed in vacuum. This difference is due to the higher refractive index of glass, which causes light to slow ...
Energy in reflected light does not depend on the angle of incidence. The amount of energy reflected remains constant regardless of the angle at which light strikes a surface. This principle is consistent in optics, where the angle of incidence ...
When two soap bubbles of different diameters are brought in contact through a tube, they will adjust their sizes due to surface tension. The smaller bubble will grow larger, and the larger bubble will shrink to achieve equilibrium until they ...
The reason why we see the sun only a few minutes before the actual sunrise is due to refraction of light. Refraction bends light as it passes through the Earth’s atmosphere, causing the Sun’s image to appear above the horizon ...
The way to separate colors is by using a prism. When white light passes through a prism, it refracts differently based on wavelength, causing it to separate into its constituent colors—red, orange, yellow, green, blue, indigo, and violet—forming a spectrum.
White light is produced in a tube by heating a filament. The filament, typically made of tungsten, is heated to a high temperature by passing an electric current through it. This causes the filament to emit light across the visible ...
The reason for the elliptical appearance of the Sun and the Moon near the horizon is refraction. When these celestial bodies are close to the horizon, their light passes through a thicker layer of the Earth’s atmosphere, causing their image ...
Fiber optic used in communication works only on the principle of total internal reflection of light. This principle allows light to propagate through the fiber by continuously reflecting off the fiber’s walls, ensuring minimal signal loss over long distances.
The formation of a rainbow is due to the refraction, dispersion, and reflection of sunlight by water droplets in the atmosphere. Sunlight entering the droplets is refracted, split into its component colors, internally reflected, and then refracted again as it ...