This part of the electromagnet spectrum produces heat and with special equipment can locate people at night.

infrared waves

microwaves

x–rays

gamma rays

What type of light does this light bulb produce most (i.e. at what wavelength does the spectrum have maximum intensity)?

Which safety measures should you follow during a thunderstorm? check all that apply. (a) avoid touching anything that conducts electricity. (b) avoid touching a person who has been struck by lightning. (c) go outside. (d) keep your computer turned off. (e) stay out of water. (f) stay inside.

Unpolarized light of intensity so passes through two sheets of polarizing material whose transmission axes make an angle of 60∘ with each other as shown in the figure. what is the intensity of the transmitted beam, st?