ELECTROMAGNETIC WAVES EXAM 2025 QUESTIONS AND ANSWERS

ELECTROMAGNETIC WAVES EXAM
2025 QUESTIONS AND ANSWERS



Electromagnetic waves vary in? - ANS wavelength and frequency


To calculate the frequency of an electromagnetic wave, you need to know the speed of the
wave and its what? - ANS wavelength



Light acts like what? - ANS Both a wave and a particle


Because light travels in a straight line and casts a shadow, Isaac Newton hypothesized that light
is? - ANS A stream of particles.



Photons travel outward from a light bulb in what direction? - ANS All directions



Infrared rays have a shorter wavelength than? - ANS Radar waves



The full range of frequencies of electromagnetic radiation is called? - ANS The
Electromagnetic Spectrum



The waves witht eh longest wavelengths in the electromagnetic spectrum are? - ANS Radio
waves



The visible light spectrum ranges between? - ANS Infrared rays and ultraviolet rays


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