Question

question 4 of 28
why does a red object appear red?
a. it absorbs light of red wavelengths.
b. it reflects infrared radiation.
c. it reflects light of wavelengths other than red.
d. it absorbs light of wavelengths other than red.

Explanation:

Objects appear a certain color because of how they interact with light. When white light (which contains all visible wavelengths) hits an object, the object can absorb or reflect different wavelengths. A red object appears red because it reflects red - wavelength light and absorbs other wavelengths.

• Option A: If it absorbed red wavelengths, it would not appear red. So, A is wrong.
• Option B: Infrared radiation is not in the visible spectrum. The color we see (like red) is due to visible light. So, B is wrong.
• Option C: If it reflected wavelengths other than red, it would not appear red. So, C is wrong.
• Option D: When an object absorbs light of wavelengths other than red and reflects red - wavelength light, it appears red. This is correct based on the principles of light - object interaction.

Answer:

D. It absorbs light of wavelengths other than red.