Which term describes a material that transmits some colors and blocks others?

Which term describes a material that transmits some colors and blocks others?

• A. Ultraviolet
• B. Filter
• C. Visible spectrum
• D. Opaque

Answer: (B)

Light can be transmitted, reflected, or absorbed by materials. A filter is a material that lets through only certain wavelengths (colors) of light while blocking the rest, which is why it changes the color of the light that passes. Ultraviolet refers to a range of wavelengths outside the visible range, not a material that filters colors. The visible spectrum is the set of colors we can see, not a material property. Opaque means no light passes through at all, so it doesn’t selectively transmit colors. So, the word that fits the description is filter.

Light can be transmitted, reflected, or absorbed by materials. A filter is a material that lets through only certain wavelengths (colors) of light while blocking the rest, which is why it changes the color of the light that passes. Ultraviolet refers to a range of wavelengths outside the visible range, not a material that filters colors. The visible spectrum is the set of colors we can see, not a material property. Opaque means no light passes through at all, so it doesn’t selectively transmit colors. So, the word that fits the description is filter.