Difficulty: Hard

Average Score: 43%

Which of the following best predicts what will happen when white light passes through a green object?

Rationale

The object will mostly reflect the green part of the light.

When white light, which contains all colors, passes through a green object, the object primarily reflects green wavelengths and absorbs other colors. This reflection is what allows the object to appear green to our eyes.

A (The object will mostly reflect the green part of the light.) CORRECT

This choice accurately describes the behavior of a green object when illuminated by white light. Green objects reflect green wavelengths while absorbing other colors, resulting in the perception of green. This is the fundamental principle of color perception based on light absorption and reflection.

B (The object will mostly absorb the green part of the light.) YOUR ANSWER

This statement is incorrect because if the object absorbed green light, it would not appear green. Instead, it would absorb the green wavelengths and reflect other colors, which would likely result in a different color perception, contrary to the observed green appearance.

C (The object will appear black.) YOUR ANSWER

An object appears black when it absorbs all wavelengths of visible light and reflects none. Since a green object reflects green light, it cannot appear black when illuminated with white light, making this choice incorrect.

D (The object will appear white.) YOUR ANSWER

An object looks white when it reflects all wavelengths of light equally. A green object, by reflecting only green light and absorbing other colors, cannot appear white, thus invalidating this option.

Conclusion

The behavior of light interaction with colored objects is determined by the principles of reflection and absorption. In the case of a green object under white light, it predominantly reflects green wavelengths, allowing it to be perceived as green. The other options fail to accurately describe this interaction, emphasizing the crucial role of selective reflection in color perception.

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