Q. 4.48

Question

Identify the form of electromagnetic radiation in each pair that has the greater energy:
 a. Radio waves or violet light.
 b. Infrared light or ultraviolet light.

Step-by-Step Solution

Verified
Answer

(a)Violet light has greater energy than radio waves.

(b)Ultraviolet light has greater energy than infrared light.

1Part(a) Step1 : Given information.

We have been given that,

Radio waves, violet light

We need to find which of the two has greater energy.

2Part(a) Step2 : Simplify.

Violet light has greater energy than radio waves. 

Since violet light has less wavelength than that of radio waves ,therefore energy is greater.

3Part(b) Step1 : Given information.

We have been given that,

Ultraviolet light,  infrared light.

We need to find which of the two has greater energy.

4Part(b) Step2 : Simplify.

Ultraviolet light has greater energy than infrared light. 

Since ultraviolet light has less wavelength than that of infrared light ,therefore energy is greater.