Question

Question 3 of 10
Which of the following technologies uses electromagnetic radiation with the
shortest wavelength?
A. Halogen lightbulb
B. Ultraviolet disinfecting wand
C. Microwave industrial drying equipment
D. Radio-controlled toy airplane​

Answer 1

Answer:

B. Ultraviolet disinfecting wand

Answer 2

B) Ultraviolet disinfecting wand

Energy in light waves depends upon the frequency of the waves.

Ultraviolet disinfecting wand would produce most energy out of the four options because it produce UV waves which have shorter wavelength and higher frequency.