Answer:

1) Regular and Irregular Reflections:

Regular reflection occurs when light waves strike a smooth and polished surface, such as a mirror. In this case, the incident light rays are reflected in an organized and parallel manner, preserving the original image's details and producing a clear reflection.

Irregular reflection occurs when light waves strike an uneven or rough surface. In this case, the incident light rays are scattered in various directions, leading to a diffuse reflection. Irregular reflections do not produce a clear image and often appear blurred.

2) Reflection and Dispersion of Light:

Reflection of light refers to the phenomenon where light waves bounce off a surface and change their direction. It occurs when light strikes a boundary between two different media and is partially or entirely reflected back.

Dispersion of light refers to the phenomenon where light waves are separated into its constituent colors (rainbow colors) when passing through a prism or a medium with varying refractive indices. Dispersion occurs because different colors of light have different wavelengths and are refracted at different angles.

3) Real and Virtual Image:

Real image is formed when light rays from an object converge and meet, forming an actual image that can be projected onto a screen. It occurs when the object is placed beyond the focal point of a converging lens or a concave mirror.

Virtual image is formed when light rays from an object appear to diverge or originate from a point behind a mirror or lens. It cannot be projected onto a screen and can only be seen by an observer looking into the optical device. Virtual images are formed when the object is placed between the focal point and the mirror/lens or when using diverging lenses/mirrors.

4) Primary and Secondary Colors:

Primary colors refer to the three colors that can be combined to produce all other colors in the visible spectrum. In the additive color model (used in lighting and digital displays), the primary colors are red, green, and blue (RGB).

Secondary colors are the colors obtained by combining two primary colors. In the additive color model, the secondary colors are cyan (green + blue), magenta (red + blue), and yellow (red + green). These secondary colors are themselves primary colors in the subtractive color model (used in printing), where they are combined with black to produce various colors.

Verified answer

Answer:

Difference for each and every question :

1. Regular reflection occurs when light rays are reflected at a smooth surface, while irregular reflection occurs when light rays are reflected at a rough surface. In regular reflection, the angle of incidence is equal to the angle of reflection, while in irregular reflection, the angle of incidence is not equal to the angle of reflection.
2. Reflection is when light bounces off a surface, while dispersion is when white light splits into its seven component colors due to the fact that lights of different colors travel with different speeds.
3. A real image is formed when light rays converge, whereas a virtual image occurs when rays only appear to diverge.
4. Primary colors are colors that cannot be obtained from mixing other colors together, while secondary colors arise from mixing two primary colors together.

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