Question

page 322
each type of electromagnetic wave has a different
and
, each carries a different amount of energy.
page 323
is electromagnetic waves that your eyes can see.
light has the longest wavelength and lowest frequency.

Explanation:

• For the first blank: Electromagnetic waves vary in wavelength and frequency. The energy of an electromagnetic wave is related to its frequency (\(E = h

u\), where \(h\) is Planck's constant and \(
u\) is frequency). Different wavelengths and frequencies lead to different energy amounts.

• For the second blank: Visible light is the part of the electromagnetic spectrum that the human eye can detect.
• For the third blank: Red light, among the visible light spectrum (ROYGBIV - red, orange, yellow, green, blue, indigo, violet), has the longest wavelength (\(\lambda\)) and lowest frequency (\(

u\)) as \(c=\lambda
u\) (where \(c\) is the speed of light in a vacuum, a constant).

Answer:

• Page 322: wavelength, frequency
• Page 323: Visible light, Red