Characteristics of Light

1. What is the color of visible light with the longest wavelength?

• A. Blue

• B. Red

• C. Violet

• D. Yellow

2. What is the color of visible light with the highest frequency?

• A. Blue

• B. Red

• C. Violet

• D. Yellow

3. Which of the following shows an increasing order of frequency in the visible spectrum?

• A. blue, green, violet, indigo

• B. green, blue, indigo, violet

• C. indigo, violet, green, blue

• D. violet, indigo, blue, green

4. What happens to the intensity of illumination as the square of the distance from the source of light increases?

• A. decreases

• B. increases

• C. remains the same

• D. cannot be determined

5. Which of the following is NOT an electromagnetic wave?

• A. Infrared

• B. Radio

• C. Sound

• D. X-ray

6. Which of the following electromagnetic waves (EM)has the highest frequency?

• A. Gamma rays

• B. Infrared radiation

• C. Radio wave

• D. Ultraviolet light

7. Light is an electromagnetic wave. Which characteristic is common in all electromagnetic waves in a vacuum?

• A. Amplitude

• B. Frequency

• C. Speed

• D. Wavelength

8. Which of the following is NOT true about the nature of light? Light is an/a_____.

• A. electromagnetic wave

• B. mixture of ROYGBIV colors of light

• C. form of energy that travels in space

• D. constant speed of 3x10^8 m/s in any medium

9. Which electromagnetic wave is used in a microscope?

• A. Infrared radiation

• B. Gamma rays

• C. Ultraviolet light

• D. Visible light

10. ROYGBIV is the basic component of white light. Among the colors below, which color of light carries the lowest energy?

• A. Blue

• B. Green

• C. Orange

• D. Red