Question

1. in each of the following pairs, circle the form of radiation with the longer wavelength: not multiple choice a. red light or blue light b. microwaves or radio waves c. infrared radiation or red light d. gamma rays or ultraviolet e. yellow light or green light 18. in each of the following pairs, circle the form of radiation with the greater frequency: not multiple choice a. yellow light or green light b. x - rays or gamma rays c. ultraviolet or infrared d. radio or visible 19. in each of the following pairs, circle the form of radiation with the lower energy: not multiple choice a. red light or blue light b. microwaves or radio waves c. infrared radiation or red light d. gamma rays or ultraviolet e. yellow light or green light

Explanation:

17.

The relationship between wavelength and energy in electromagnetic - radiation is that energy is inversely proportional to wavelength. Longer - wavelength radiation has lower energy. Radio waves have the longest wavelengths among the given options.

The frequency of electromagnetic radiation is inversely related to its wavelength. Shorter - wavelength radiation has higher frequency. Gamma rays have very short wavelengths and thus high frequencies. Among the given pairs, gamma rays have a greater frequency compared to the other options.

Energy is inversely proportional to wavelength. Longer - wavelength radiation has lower energy. Radio waves have the longest wavelengths among the given options, so they have lower energy.

Answer:

B. microwaves or radio waves

18.