Which statement below about green and blue visible light is accurate?

A. Green light has a shorter wavelength than blue light.
Incorrect. Green light has a longer wavelength than blue light.

B. The energy of blue light is lower than green light.
Incorrect. Blue light has a higher frequency and therefore more energy.

C. The frequency of blue light is greater than the frequency of green light.
Correct! Blue light has a shorter wavelength and therefore a higher frequency.

D. The frequency of green light is greater than the frequency of blue light.
Incorrect. Blue light has a shorter wavelength and therefore a higher frequency as compared to green light.

Some reptiles can see light of shorter wavelengths than humans can see. According to the electromagnetic spectrum, what type of light do you think these reptiles can see?

A. Microwaves
Incorrect. Microwaves have a longer wavelength when compared to visible light.

B. Ultraviolet
Correct! Ultraviolet radiation has a shorter wavelength than visible light.

C. Infrared
Incorrect. Infrared has a longer wavelength when compared to visible light.

D. Radio Waves
Incorrect. Radio waves have a longer wavelength when compared to visible light.

Which group below correctly lists the electromagnetic waves in order from lowest to highest frequency?

A. microwave, infrared, visible light, x-ray
Correct!

B. infrared, radio, x-ray, ultraviolet
Incorrect. Infrared has a higher frequency than radio and x-ray has a higher frequency than ultraviolet.

C. radio wave, visible light, gamma, x-ray
Incorrect. Gamma rays have a higher frequency than x-rays.

D. microwave, radio wave, infrared, ultraviolet
Incorrect. Microwaves have a higher frequency than radio waves.