Podcast
Questions and Answers
What are the types of electromagnetic radiation?
What are the types of electromagnetic radiation?
- Radio waves, microwaves, visible light, ultraviolet, X-rays, and gamma rays
- Infrared, ultraviolet, X-rays, and gamma rays
- Radio waves, microwaves, infrared, (visible) light, ultraviolet, X-rays, and gamma rays (correct)
- Sound waves, ocean waves, visible light, ultraviolet, X-rays, and gamma rays
What is the speed of electromagnetic waves in a vacuum?
What is the speed of electromagnetic waves in a vacuum?
- $0$, they cannot travel in a vacuum
- $2c$, twice the speed of light
- $\frac{c}{2}$, half the speed of light
- $c$, the speed of light (correct)
How are the oscillations of electric and magnetic fields in electromagnetic waves oriented?
How are the oscillations of electric and magnetic fields in electromagnetic waves oriented?
- On average parallel to each other and perpendicular to the direction of energy and wave propagation
- On average perpendicular to each other and perpendicular to the direction of energy and wave propagation (correct)
- Randomly oriented in relation to each other and to the direction of energy and wave propagation
- Parallel to each other and parallel to the direction of energy and wave propagation
How can the position of an electromagnetic wave within the electromagnetic spectrum be characterized?
How can the position of an electromagnetic wave within the electromagnetic spectrum be characterized?
What is the order of increasing frequency and decreasing wavelength for electromagnetic waves?
What is the order of increasing frequency and decreasing wavelength for electromagnetic waves?
Electromagnetic radiation consists of waves of the electromagnetic field, which propagate through space and carry momentum and electromagnetic radiant energy.
Electromagnetic radiation consists of waves of the electromagnetic field, which propagate through space and carry momentum and electromagnetic radiant energy.
Electromagnetic waves travel at the speed of light in a vacuum.
Electromagnetic waves travel at the speed of light in a vacuum.
The oscillations of electric and magnetic fields in electromagnetic waves are perpendicular to each other and perpendicular to the direction of energy and wave propagation.
The oscillations of electric and magnetic fields in electromagnetic waves are perpendicular to each other and perpendicular to the direction of energy and wave propagation.
X-rays have a higher frequency and a shorter wavelength than infrared radiation.
X-rays have a higher frequency and a shorter wavelength than infrared radiation.
Ultraviolet radiation has a lower frequency and a longer wavelength than visible light.
Ultraviolet radiation has a lower frequency and a longer wavelength than visible light.
