Question

white sunlight enters a triangular glass prism. rainbow colors are visible coming out of the prism, as shown below. complete the explanation of this phenomenon. - white light is an electromagnetic wave containing. - when the light reaches the boundary between air and glass, the. - so, when light leaves the prism, different colors are visible because.

Explanation:

1. For the first blank: White light is composed of multiple wavelengths corresponding to different colors (the visible spectrum: red, orange, yellow, green, blue, indigo, violet). So it contains "all visible wavelengths (or all colors of the visible spectrum)".
2. For the second blank: When light moves from air to glass (a denser medium), it undergoes refraction (bending of light). Also, different wavelengths (colors) of light have different refractive indices in glass, so they bend at different angles. So the process here is "refraction occurs, and different wavelengths bend at different angles".
3. For the third blank: When the light exits the prism (moving from glass to air), the different wavelengths (colors) that were bent differently during entry now emerge as separate colors because they have different angles of refraction. So the reason different colors are visible is "different wavelengths (colors) of light refract at different angles, causing them to separate".

Answer:

• White light is an electromagnetic wave containing $\boldsymbol{\text{all visible wavelengths (or all colors of the visible spectrum)}}$.
• When the light reaches the boundary between air and glass, the $\boldsymbol{\text{light refracts (bends), and different wavelengths bend at different angles}}$.
• So, when light leaves the prism, different colors are visible because $\boldsymbol{\text{different wavelengths (colors) of light have different angles of refraction, leading to their separation}}$.