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Dispersion of White Light Video Lecture - Class 10

FAQs on Dispersion of White Light Video Lecture - Class 10

1. What is dispersion of white light?

Ans. Dispersion of white light refers to the process in which white light is separated into its constituent colors or wavelengths, resulting in the formation of a spectrum. This phenomenon occurs when white light passes through a prism or any other medium that has a refractive index varying with wavelength.

2. How does dispersion of white light occur?

Ans. Dispersion of white light occurs due to the phenomenon of refraction. When white light passes through a medium with varying refractive index, each color in the white light spectrum experiences a different degree of refraction. As a result, the colors bend at different angles, causing them to spread out and form a spectrum.

3. What are the colors that make up the spectrum formed by dispersion of white light?

Ans. The spectrum formed by the dispersion of white light consists of the colors of the rainbow, namely red, orange, yellow, green, blue, indigo, and violet. These colors represent different wavelengths of light, with red having the longest wavelength and violet having the shortest wavelength.

4. What is the significance of dispersion of white light?

Ans. The dispersion of white light is significant because it helps us understand the nature of light and its interaction with different materials. It also plays a crucial role in various scientific applications. For example, in spectroscopy, the dispersion of light helps in analyzing the composition of substances by studying the specific wavelengths of light they emit or absorb.

5. Can dispersion of white light be observed in everyday life?

Ans. Yes, the dispersion of white light can be observed in everyday life. One common example is the formation of a rainbow after rainfall. Sunlight is dispersed by water droplets in the air, creating a beautiful spectrum of colors. Another example is when light passes through a glass prism, creating a spectrum on a nearby surface.

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Sep 22, 2025 Last updated

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