Question

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 the brightness of the colored light increased the different colors of light spread out from each other different colors were added to the white light

Answer:

First blank (White light is an electromagnetic wave containing):

White light is composed of multiple wavelengths corresponding to different colors (red, orange, yellow, green, blue, indigo, violet). So the correct option is "different colors of light spread out from each other" (wait, no, the first blank: White light is an electromagnetic wave containing different colors (wavelengths) of light? Wait, looking at the options on the left (the vertical list): the options are "the brightness of the colored light increased", "the different colors of light spread out from each other", "different colors were added to the white light". Wait, no, the first bullet: "White light is an electromagnetic wave containing [dropdown]". Wait, maybe the options for the first dropdown are about what white light contains. Wait, white light is a mixture of different colored lights (different wavelengths). So the correct option for the first blank (White light is an electromagnetic wave containing) would be related to different colors. Wait, the left options: let's parse the image again. The left has three options (vertical):

1. the brightness of the colored light increased
2. the different colors of light spread out from each other
3. different colors were added to the white light

Wait, no, the first bullet: "White light is an electromagnetic wave containing [dropdown]". Then the second bullet: "When the light reaches the boundary between air and glass, the [dropdown]". Third bullet: "So, when light leaves the prism, different colors are visible because [dropdown]".

Let's solve each:

1. First blank (White light is an electromagnetic wave containing):

White light is a composite of different colored lights (each with a specific wavelength). So it contains "different colors of light" (but the option is "the different colors of light spread out from each other"? No, wait, no—wait, the first blank is about what white light contains. Wait, maybe the options for the first dropdown are the three left options. Wait, no, the left options are for the third blank? Wait, maybe I misread. Let's re-express:

• Bullet 1: White light is an electromagnetic wave containing [option].
• Bullet 2: When light reaches air-glass boundary, the [option].
• Bullet 3: So, when light leaves prism, different colors visible because [option].

The left (vertical) options are:

• the brightness of the colored light increased
• the different colors of light spread out from each other
• different colors were added to the white light

Step 1: White light composition

White light is a mixture of different colored lights (red, green, blue, etc., or ROYGBIV). So it contains these different colors. But the options: the first blank’s dropdown should have an option about what white light contains. Wait, maybe the first blank’s option is related to "different colors"—but the left options: let's check the third bullet: "different colors are visible because [option]". That would be because the different colors spread out (dispersion).

Step 2: Refraction at air-glass boundary

When light (white light) hits the air-glass boundary (prism), it refracts (bends). Different colors (wavelengths) have different refractive indices, so they bend at different angles. Wait, but the second blank: "When the light reaches the boundary between air and glass, the [option]". The option here would be related to the light’s behavior—maybe "the different colors of light spread out from each other" starts here? No, wait, the second bullet is about the initial refraction. Wait, when light enters the prism, different colors bend differently (dispersion starts). But the option: let's think about the process of dispersion.

Step 3: Why colors are visible after prism

After passing through the prism, different colors are visible because they have spread out (dispersion: different wavelengths bend at different angles, so they separate). So the third blank: "different colors are visible because the different colors of light spread out from each other".

Wait, let's correct:

1. First blank (White light is an electromagnetic wave containing):

White light is composed of different colored lights (each with a unique wavelength). So it contains "different colors of light"—but the option is "different colors were added to the white light"? No, that’s incorrect (white light is not created by adding colors to white light, but is a mixture). Wait, maybe the first blank’s option is "the different colors of light spread out from each other"—no, that’s about what happens, not what it contains. I think I misread the options. Let's try again:

• First bullet (White light is an electromagnetic wave containing):

White light is a combination of various colored lights (e.g., red, green, blue in additive mixing, or ROYGBIV in spectral terms). So the correct option here is that it contains different colored lights, but the available option is "the different colors of light spread out from each other"—no, that’s a process, not a composition. Wait, maybe the first blank’s dropdown has an option like "different wavelengths (colors) of light", but the given options are the three on the left. Let's check the three options:

1. the brightness of the colored light increased: Not related to what white light contains.
2. the different colors of light spread out from each other: Describes a process (dispersion), not composition.
3. different colors were added to the white light: Incorrect (white light is a mixture, not created by adding colors to white light).

Wait, this is confusing. Maybe the first blank is about the fact that white light is a mixture, so the correct option is "the different colors of light spread out from each other"—no, that’s not right. Wait, maybe the image’s text is different. Let's assume the standard dispersion explanation:

1. White light is a mixture of different colored lights (different wavelengths).
2. When entering the prism (air-glass boundary), light refracts, and different colors bend at different angles (because they have different refractive indices).
3. When exiting the prism, the colors have spread out (dispersion), so they are visible.

So:

• First blank (White light is an electromagnetic wave containing):

White light contains different colors of light (so the option is "the different colors of light spread out from each other"—no, that’s a process. Wait, maybe the first blank’s option is "different colors were added to the white light"—no, that’s wrong. I think there’s a misinterpretation. Let's proceed with the standard steps:

1. White light is a combination of various colored lights (so it contains different colors).
2. At the air-glass boundary, light refracts, and the different colors of light spread out from each other (start of dispersion).
3. After exiting the prism, colors are visible because the different colors of light spread out from each other (they have separated).

But the options are:

For the first blank: Let's say the correct option is "different colors were added to the white light"—no, that’s incorrect. Alternatively, maybe the first blank is about the light’s components, so the correct option is "the different colors of light spread out from each other"—no, that’s a process. I think the image’s text might have the options misaligned. Let's try to answer based on standard dispersion:

• First blank (White light is an electromagnetic wave containing): different colors of light (but the option is "the different colors of light spread out from each other"—maybe this is a mistake, but proceed).
• Second blank (When light reaches air-glass boundary): the different colors of light spread out from each other (refraction causes dispersion, so colors start to spread).
• Third blank (So, when light leaves the prism): the different colors of light spread out from each other (they have separated, so visible).

But the three options are:

1. the brightness of the colored light increased
2. the different colors of light spread out from each other
3. different colors were added to the white light

Let's match:

1. First blank (White light contains): The only option that makes sense (even if imperfect) is that white light contains different colors, but the option is "different colors were added to the white light"—no, that’s wrong. Wait, maybe the first blank is not about composition but about the process. No, white light is a mixture. I think the intended answers are:

• First blank: different colors were added to the white light (incorrect, but maybe the question’s wording is off).
• Second blank: the different colors of light spread out from each other (refraction causes dispersion).
• Third blank: the different colors of light spread out from each other (colors have separated).

But this is confusing. Alternatively, let's use the standard dispersion process:

1. White light is a mixture of different colored lights (so it contains different colors).
2. When entering the prism (air-glass boundary), light refracts, and different colors bend at different angles (so the different colors of light spread out from each other).
3. When exiting the prism, the colors are visible because they have spread out (so the different colors of light spread out from each other).

So the answers would be:

1. First blank: different colors were added to the white light (no, this is wrong—maybe the option is miswritten, and it should be "different colors of light").
2. Second blank: the different colors of light spread out from each other
3. Third blank: the different colors of light spread out from each other

But given the options, the most logical is:

• First blank: (assuming the option is about what white light contains, but the options are off—maybe the first blank is "different colors of light" but the option is "the different colors of light spread out from each other"—no).

Alternatively, maybe the first blank is "different colors were added to the white light" (incorrect, but maybe the question’s error), second blank "the different colors of light spread out from each other", third blank "the different colors of light spread out from each other".

But to answer, let's list the correct options:

1. White light is an electromagnetic wave containing: different colors were added to the white light (incorrect, but forced by options) – no, this is wrong. Wait, no—white light is not created by adding colors to white light. The correct scientific fact is that white light is a mixture of different colored lights. So the option "the different colors of light spread out from each other" is a process, not a composition. I think there’s a misalignment in the options.

Given the image, the intended answers are likely:

• First blank: the different colors of light spread out from each other (no, this is a process) – no.

I think the key is to follow the dispersion process:

1. White light is a mixture of different colors (so it contains different colored lights).
2. At air-glass boundary, refraction occurs, and different colors bend differently (so they start to spread: the different colors of light spread out from each other).
3. After exiting the prism, colors are visible because they have spread out (so the different colors of light spread out from each other).

So the three blanks (dropdowns) would be:

1. White light is an electromagnetic wave containing: the different colors of light spread out from each other (incorrect, but maybe the question’s wording is off).
2. When light reaches air-glass boundary: the different colors of light spread out from each other (correct, as refraction causes dispersion).
3. So, when light leaves the prism: the different colors of light spread out from each other (correct, as they have separated).

But the other options: "the brightness of the colored light increased" is irrelevant, and "different colors were added to the white light" is incorrect. So the only plausible option for the blanks (after the first) is "the different colors of light spread out from each other". For the first blank, maybe the option is miswritten, but we proceed with the process.

Final Answers (assuming the dropdowns are filled with the left options):

1. White light is an electromagnetic wave containing: the different colors of light spread out from each other (note: this is a process, not composition, but forced by options).
2. When light reaches air-glass boundary: the different colors of light spread out from each other (refraction causes dispersion).
3. So, when light leaves the prism: the different colors of light spread out from each other (colors have separated).

(Note: The options seem misaligned with the scientific explanation, but this is the best fit with the given choices.)