Electromagnetic Spectrum

EM Frequencies
A. 10^9-10^12 Hz
B. Frequency is higher, wavelength is smaller, speed is the same
C. Radio waves

Finding the Invisible
A. To the right of the green patch.
B. Your eyes (directly)
C. Only a red patch would be seen.

Light on Surfaces
A. Light, shiny surfaces
B. Surface B

EM Spectrum Properties
A. ultraviolet, X-rays and gamma rays
B. radio waves, X-rays and gamma rays
C. All of them

EM Spectrum Applications
A. radio waves, microwaves, infra-red (IR)
B. microwaves, infra-red and visible light
C. radio waves, visible light, ultraviolet, X-rays and gamma rays