1. Which color within the visible spectrum has the highest frequency and shortest wavelength?

A. Green    C. Red

B.Violet    D. Blue

2. Why does the sky appear to be blue?

A. Clouds reflect the color of the ocean

B. Molecules in the atmosphere scatter blue light the most

C. Molecules in clouds absorb blue light

D. Clouds disperses blue light

3. As the frequencies of the pure spectral colors increase, the wavelengths of the colors:

A. Decrease    B. Increase

C. Remains the same    D. Increase then decrease

4. Sunset often have reddish color associated with them. This is attributable to the phenomenon of     

A. Polarization    B. Diffraction

C. Dispersion    D. Refraction

5. What color comes between yellow and blue?

A. Red    B. Orange    C. Green    D. Indigo

6. What do you call the separation of light into its component colors?

A. Refraction    B. Dispersion

C. Reflection    D. Polarization

7. What wave property can best explain the apparent bending of pencil when it is dipped into a glass of water?

A. Refraction    B. Dispersion

C. Reflection    D. Polarization

8.     is a type of electromagnetic wave in which human eye can see.

A. Radiowaves    B. X-ray

C. Microwave    D. Visible light

9. When light is refracted, it changes direction. This statement is

A. True    B. False

C. Partially True    D. Partially False

10. As the frequency of color increases, the amount of energy;

A. also increases    B. decreases

C. increases then decreases    D. nothings change

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