Microwaves have long wavelengths and extremely high frequencies and photon energy.
a. true
b. false

What color of light must blue light mix with to create white light? a. yellow b. white c. blue d. green

Apatient has a history of poor nutrition. he has skin rashes, bleeding gums, and a cut that hasn’t healed in a long time. what vitamin deficiency most likely caused this symptom?

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s. what is the wavelength?